热门试题:
[判断题]工程项目的使命对工程项目的管理没有任何影响
[单选题]法律对违法行为已经作出行政处罚规定,行政法规需要作出具体规定的,必须在法律规定的给予行政处罚的的( )范围内规定。
A.行为.种类和幅度
B.种类和幅度
C.种类
D.幅度
[判断题]417.(83146)钢卷尺是生产现场施工与规划中不可缺少的专用低级测量工具。
A.正确
B.错误
[单选题]7月9日，中国科学院在黑龙江省（）发布《东北黑土地白皮书（2020）》。这是我国首次发布黑土地
白皮书。
A.齐齐哈尔市
B.鹤岗市
C.绥化市
D.哈尔滨市
[单项选择]在电动机的继电器接触器控制电路中，常用作电动机的过载保护的是（）。
A. 按钮
B. 热继电器
C. 熔断器
[单项选择]
W: In this city there are many types of transportation available. Which do you use, Fred
M: The buses are so crowded that I usually take the tram.
Why does Fred prefer to use the tram （）
A. They are faster.
B. It is the only thing available.
C. Buses are not safe.
D. Buses are too crowded.
[单选题]工作班成员的安全责任：服从（ ）的指挥，严格遵守本规程和劳动纪律，在确定的作业范围内工作，对自己在工作中的行为负责，互相关心工作安全。
A.A.工作负责人（监护人）、专责监护人
B.B.工作负责人（监护人）
C.C.专责监护人
D.D.工作负责人（监护人）、小组负责人
E.略
F.略
[单选题] 不属于《安全生产法》规定的从业人员安全生产保障知情权的一项是( )
A.有权了解其作业场所和工作岗位存在的危险因素
B.有权了解防范措施
C.有权了解事故应急措施
D.有权了解事故后赔偿情况
[判断题]总包单位应对承揽分包工程的分包单位进行贷质,安全生产许可证和相关人员安全生产资格的审查, ( )
A.正确
B.错误
[判断题]电子凭证的非活期存款销户或部提时，无须先换成纸质凭证可直接销户或部提。
A.正确
B.错误
[判断题](30730)( )康明斯KTA-19G2柴油机曲轴箱通风口冒白烟,最大可能是拉缸。
A.正确
B.错误
[单选题]血糖是指血液中的
A.果糖
B.糖原
C.半乳糖
D.戊糖
E.葡萄糖
[单选题]既能疏散肺经风热而利咽、透疹、止痒，又能疏散肝经风热而明目退翳，凉肝息风止痉的药物是
A.羌活
B.防风
C.薄荷
D.蝉蜕
[多选题]( )时应及时维护变压器吸湿器。
A. 吸湿剂受潮变色超过2/3
B. 吸湿剂受潮变色超过3/5
C. 油封内的油位超过上下限
D. 吸湿器玻璃罩及油封破损
[不定项选择题]共用题干
Face Masks May Not Protect from Super-flu
1 If a super-flu strikes,face masks may not protect you.Whether widespread use of masks will help,or
harm,during the next worldwide flu outbreak is a question that researchers are studying furiously.No results
have come from their mask research yet.However,the government says people should consider wearing them
in certain situations anyway,just in case.
2 But it's a question the public keeps asking while the governments are making preparations for the
next flu pandemic. So the Centers for Disease Control and Prevention ( CDC ) came up with（提出）prelimi-
nary guidelines（初步指导方针）." We don ' t want people wearing them everywhere , " said the CD
C. " The
overall recommendation really is to avoid exposure."
3 When that's not possible,the guidelines say to consider wearing a simple surgical mask if you are in
one of the three following situations.First,you're healthy and can't avoid going to a crowded place.Second,
you're sick and think you may have close contact with the healthy,such as a family member checking on
you.Third,you live with someone who's sick and thus might be in the early stages of infection,but still need
to go out.
4 Influenza pandemic can strike when the easy-to-mutate flu virus shifts to a strain that people never
have experienced.Scientists cannot predict when the next pandemic will arrive,although concern is rising
that the Asian bird flu might trigger one if it starts spreading easily from person to person.
5 During the flu pandemic,you should protect yourself. Avoid crowds,and avoid close contact with the
sick unless you must care for someone.Why aren't masks added to this self-protection list?Because they can
help trap virus-laden（含有病毒的、充满细菌的）droplets flying through the air with a cough or sneeze.
Simple surgical masks only filter the larger droplets.Besides,the CDC is afraid masks may create a false
sense of security.Perhaps someone who should have stayed home would don an ill-fitting mask and hop on
the subway instead.
6 Nor does flu only spread through the air. Say someone covers a sneeze with his or her hand,then tou-
ches a doorknob or subway pole.If you touch that spot next and then put germy hands on your nose or
mouth,you've been exposed.It's harder to rub your nose while wearing a mask and so your face may get
pretty sweaty under masks.You reach under to wipe that sweat,and may transfer germs caught on the outside
of the mask straight to the nose.These are the problems face masks may create for their users.
7 Whether people should or should not use face masks still remains a question.The general public has
to wait patiently for the results of the mask research scientists are still doing.
Paragraph 6_______________
A.Reasons for Excluding Masks From the Self-protection List
B.Effort to Stop Flu From Spreading
C.When to Use Face Masks
D.Guideline on Mask Use
E.Warnings From the CDC
F.Danger of Infection Through Germy Hands and Masks
[单项选择]有关化学毒物化学结构与毒性效应之间关系的研究的陈述中，不正确的是
A. 有助于从分子水平乃至量子水平阐明化学毒物的毒理机制
B. 有助于指导新化学物质或药物的设计和合成
C. 有助于指导解毒药物的筛选
D. 有助于评价人群的易感性
E. 有助于预估新化学物质的安全限量标准范围
[单选题]等电位作业人员对邻相导线的距离应不小于：220kV( )m，330kV( )m。
A.1.4；3.5
B.2.5；5.0
C.2.5；3.5
D.略
[单选题]非集中区调车，单机或机车牵引运行时，由（ ）要道。
A.调车长
B.调车人员
C.司机
D.扳道员
[单选题]水平角观测中,目标偏心误差对水平角的影响最大时是()。
A.偏心误差垂直于观测方向
B.偏心误差平行于观测方向
C.测站与目标距离较大
D.测站与目标距离较大
[判断题]在我国铁路上,曲线轨道比重占有不是很大,只是山区铁路所占比重大。
A.正确
B.错误
[单项选择]邪壅经络宜选：
A. 腹大胀满，按之如囊裹水
B. 腹大胀满，脉络怒张
C. 腹大胀满不舒，早宽暮急
D. 腹大胀满，舌红绛少津
E. 腹大胀满，脘腹撑急
[多选题]选用开关电源时.需要考虑的电气情能指标有( )。
A.输入特性指标
B.输出特性指标
C.过电流保护
D.输入嗓声
E.静电嗓声
[判断题]2.62依据《机动车查验工作规程》GA801-2019规定，对载客汽车、危险货物运输货车、半挂牵引车和总质量大于或等于 12000kg的其他货车，查验行驶记录装置。
A.正确
B.错误
[单选题]“有些行业‘天生’就是集中的,如石油化工,因为它要有较大的初始投资。同时,也有的行业恐怕‘永远’都是分散的,如修鞋。”这阐述了_______
A. 战略赌注
B. 行业的分散与集中程度
C. 行业内企业的差异化与转换成本
D. 行业市场的增长程度
[单项选择]设计要求的洞口、管道、沟槽应于砌筑时正确留出或预埋，未经设计同意，不得打凿墙体和在墙体上开凿水平沟槽。宽度超过( )的洞口上部，应设置过梁。
A. 100mm
B. 200mm
C. 300mm
D. 400mm
[判断题]脚手架式跨越架搭设前，应清理、平整搭设场地，并应根据现场情况确定立杆坑位和拉线位置，还应做好排水措施。（ ）（DL/T 5106—2017《跨越电力线路架线施工规程》5.2.3）
A.正确
B.错误
[判断题]移动变电站瓷瓶松动但无裂纹、损伤，无放电痕迹可认为符合完 好标准。
A.正确
B.错误
[单选题]《幼儿园工作规程》要求，幼儿园教师必须具有( )规定的幼儿教师资格。
A.《教师资格条例》
B.《教育资格条例》
C.《保育资格条例》
D.《幼儿园资格条例》
[单项选择]A job interview helps you decide if the job meets your career needs and interest.
A. 一次工作交流可以帮助你决定该工作是否与你的需要和兴趣相互一致。
B. 一次应聘面试有助于你决定该工作是否满足你职业上的需求和利益。
C. 一次应聘面试有助于你判断该工作是否符合你的就业要求和兴趣。
D. 如果该工作能满足你的职业要求和兴趣，你就可以决定接受面试。
[单选题].钩舌销磨耗大于( )或裂纹时更换。
A.2.mm
B.3.mm
C.4.mm
D.5.mm
[填空题] Every profession or trade, every art, and every science has its technical vocabulary, the function of 【B1】 is partly to 【B2】 things or processes with no names in ordinary English, and partly to secure greater exactness in terminology. 【B3】 , they save time, for it is much more 【B4】 to name a process than describe it. Thousands of these technical terms are very 【B5】 included in every large dictionary, yet, as a whole, they are rather 【B6】 the outskirts of the English language than actually within its borders.
Different occupations, however, differ 【B7】 in their special vocabularies. It 【B8】 largely of native words, or of borrowed words that have 【B9】 themselves into the very fibre of our language. 【B10】 . though highly technical in many details, these vocabularies are more familiar in sound, and more generally 【B11】 . than most other technical terms. 【B12】 every vocation still possesses a large 【B13】 of technical terms that remain essentially foreign, even 【B14】 educated people
A. A．for
B．as
C．to
D．among
[单选题] 逮捕后,除有碍侦查或者无法通知的情形以外,应当把逮捕的原因和羁押的处所,在()以内通知被逮捕人的家属或者他的所在单位。
A. 12小时
B. 24小时
C. 48小时
D. 3日
[单选题]根据《苏价工〔2012〕182号》规定:考虑我省的气候特点,居民夏、冬季用电较多的实际情况,阶梯电价按()为周期执行。
A.月
B.季
C.年
D.半年
[单选题]赔偿义务机关赔偿损失后，应当责令有（ ）的工作人员或者受委托的组织或者个人承担部分或者全部赔偿费用。
A.过错
B.过失
C.故意或者重大过失
D.故意
[单项选择]在公有派生的情况下，派生类中定义的成员函数只能访问原基类的【 】
A. 公有成员和私有成员
B. 私有成员和保护成员
C. 公有成员和保护成员
D. 私有成员、保护成员和公有成员
