热门试题:
[单选题]外圆柱工件在套筒孔中的定位,当选用较短的定位心轴时,可限制( )自由度。
A.A、两个移动
B.B、两个转动
C.C、两个移动和两个转动
D.D、一个移动一个转动
[单选题]触电急救应急心肺复苏胸外按压的按住幅度为胸骨下陷至少( )厘米。
A. 3
B. 4
C. 5
D. 6
[多选题]下列行为中,属于风险转移的有( )。
A.签订发包合同
B.设立应急储备金
C.彻底改变项目原方案
D.发行股票筹集项目资金
E.在合同中列入免责条款
[判断题]充换电设备巡视人员可单人进行。
A.正确
B.错误
[单项选择]若已建类似项目的规模和拟建项目的规模相差不大,生产规模比值在0.5~2之间,则指数n的取值为( )。
A. 0.6~0.7之间
B. 0.7~0.8之间
C. 0.8~0.9之间
D. 接近1
[单项选择]A: How about the food I ordered I've been waiting for nearly twenty minutes.B: Sorry. ______
[单项选择]
Facial expressions carry meanings that are partly determined by culture. For example, many Japanese do not show their emotions as freely as Americans do, so teachers in the United States sometimes have trouble knowing whether their Japanese students understand and enjoy their lessons.
Another example is the smile. As a common facial expression, it may show affection, convey politeness, or disguise(掩饰)true feelings. But in different cultures. smiles have different meanings. Many people in Russia consider smiling at strangers in public to be unusual and even a suspicious behavior. Yet many Americans smile freely at strangers in public places, for American culture a smile is typically an expression of pleasure. Therefore some Russians believe that Americans smile in the wrong places; some Americans believe that Russians don’t smile enough. In Southeast Asian cultures, a smile is frequently used to cover emotional pain or embarrassment. Vietnamese people may tell the sa
A. Russians think smiling at strangers is a proper behavior.
B. Russians usually smile as frequently as Americans do.
C. Many Americans smile freely at strangers in public.
D. Russians and Americans have the same opinion of smiles.
[填空题]治疗肠燥便秘可选用()、火麻仁、杏仁、桃仁等。
[单选题]七位ASCII码最多可以表示( )个西文符号。
A.256
B.128
C.64
D.32
[单项选择]Lewis (had to) travel (by bus) as his car (had been damaged) in an accident some days before and he (was failed) to get it repaired.
A. had to
B. by bus
C. had been damaged
D. was failed
[单选题]当拨道大于( )时还需要先进行荒拨。
A.10M
B.20M
C.25M
D.30M
[简答题]
观看纪录片《长江大桥》第二集《千年建桥梦》,回答下列问题
用不超过两百字为本片加上导语。
[单选题]机电二中心( )开展一次灭火或疏散逃生训练,掌握初起火灾扑救方法和基本火场逃生方法
A.每年
B.每半年
C.每季度
D.每月
[单项选择]患者,男性,65岁,出现心悸,心前区疼痛,该患者的诊断是()
A. 冠心病
B. 感染性心内膜炎
C. 病态窦房结综合征
D. 动脉导管未闭
E. 甲状腺功能亢进
[单项选择]提高道路沥青的调合温度,则道路沥青的针入度()。
A. 降低
B. 升高
C. 不变
D. 无法判断
[判断题]神经胶质细胞中含有尼氏体
A.正确
B.错误
[单选题]各级运输部门均应主动与路内外有关单位密切配合,( )运输方案。
A.共同编制
B.认真执行
C.共同编制和执行
D.认真编制
[多选题]在SF6电气设备室低位区应安装能( )。
A.报警的氧量仪
B.SF6气体泄漏警报仪
C.一氧化碳浓度检测器
D.报警的氟量仪
[判断题]( )在气温较低的季节,应安排锁定轨温较高或薄弱地段进行综合维修;在气温较高的季节, 应安排锁定轨温较低地段进行综合维修。
A.正确
B.错误
[单项选择]This article is about
[判断题]人在梯子上时,禁止移动梯子。
A.正确
B.错误
[单选题]互感器式钳形电流表由电流互感器和带整流装置的( )表头组成。
A.磁电系
B.电磁系
C.电动系
D.感应系
[判断题]承力杆打帮桩挖坑时,应采取防止倒杆的措施。使用铁钎时,应注意上方导线。
A.正确
B.错误
[单选题] 单选题 2019.年1.月10.日电,近日,中国网络视听节目服务协会发布《网络( )平台管理规范》及《网络()内容审核标准细则》。两份文本从机构把关和内容审核两个层面为规范( )传播秩序提供了依据。
A. 信息发布
B. 短视频
C. 视频
D. 图片
[单选题]下列关于金属基底的制作描述中错误的是 ( )
A.为了使金属基托与人工牙结合牢固常需要在金属基底正对人工牙冠中央处设置固位装置
B.制作金属基底时,只能用带模铸造法
C.金属基底的后部与塑料基托相连处,应作成一定的固位装置,并离开模型0.5mm
D.对于多个上前牙缺失需要制作金属基底时,常需要制作前牙石膏唇型
E.若金属基底蜡型体积小时,可采用脱模法制作
[多项选择]《煤矿安全质量标准化标准》规定,采煤工作面在用支柱要()。
A. 完好
B. 不漏液
C. 不自动卸载
D. 无外观损伤
[判断题]防爆车辆冷却系统中的风扇皮带紧急情况下可以用普通皮带替换。( )
A.正确
B.错误
[简答题]写信邀请朋友参加你的生日聚会。
信的内容包括:
(1)告知对方聚会的具体时间、地点;
(2)到达聚会地点的行车路线及便利的交通工具;
(3)要求对方就是否能参加聚会作回复。
[判断题]千分表的传动机构中传动的级数要比百分表多,因而放大比更大,测量精度也更高。
A.正确
B.错误
[多项选择]证券投资基本分析的理论不包括()。
A. 统计学
B. 心理学
C. 慨率论
D. 经济学
[判断题]测定绝缘油的酸价是为了及时发现油的 老化情况 。
A.正确
B.错误
[单项选择]
This story is (21) a farmhand and a landlord. The farmhand worked hard all day long. (22) he got very (23) money and never had much to eat.
One day, when the farmhand was having breakfast, the landlord came and said to him, "It’s too much (24) to go to work and then come back for lunch, then go to the fields again and come back for (25) . So I want you to have your breakfast, lunch and supper now, (26) you go to the fields."
How could a man eat three (27) all together
The farmhand said, "All right." He (28) his breakfast and went out. Half an lour later, when the landlord was out for a walk, he saw the farmhand (29) under a tree, doing (30) The landlord was very surprised.
"Why aren’t you working in the fields" he asked.
The farmhand said with a smile, "Well, I’ve had my supper, and you know very well that after supper
A. meal
B. breakfast
C. lunch
D. supper
[多选题]铲除空鼓开裂部分,重新抹灰粉刷;严重时可加入( ),对单面墙进行修理;必要时对整个外墙进行修理
A.抗裂纤维
B.抗裂铁丝
C.抗裂钢丝
D.水泥土
[单选题]“应收账款”科目明细账中若有贷方余额,应将其计入资产负债表中的( )项目。
A.应收账款
B.预收账款
C.应付账款
D.其他应付款
[判断题]通过信号机应设在闭塞分区或所间区间的分界处。
A.正确
B.错误
[单项选择]如指针在表盘上指示值是1000r/s,表系数是1:10,那么轴转速是()r/min。
A. 1000
B. 6000
C. 2000
D. 500
[单项选择]碘生理功能包括()。
A. 促进结缔组织形成
B. 促进神经系统发育
C. 维持正常造血功能
D. 预防动脉粥样硬化
E. 促进骨骼生长
[单选题]航向台信号的覆盖区域为()。
A.在跑道中线延长线左右10度以内为25NM,10度-35度之间为17NM
B.在跑道中线延长线左右10度以内为25km
C.在跑道中线延长线左右35度以内为17km
D.在跑道中线延长线左右35度以内为25NM
[填空题]教学过程结构包括引起学习动机、领会知识、()、()、()五个阶段
[简答题]编织制动软管总成、塞门、组合式集尘器检修完成后,储存期不得超过( )个月。