热门试题:
[单选题]从下列PA2值可知拮抗作用最强的是:()。
A. 0.1
B. 0.5
C. 1.6
D. 1.5
[多项选择]中药砂仁的主产地是()
A. 广东
B. 广西
C. 云南
D. 海南
E. 福建
[单项选择]关于麻疹的叙述,不正确的是( )。
A. 病人是惟一传染源
B. 只通过呼吸道传染
C. 凡未患过麻疹或未接种过麻疹疫苗者为易感者
D. 感染后可终身免疫
E. 潜伏期末2~3天至出疹后5天有传染性
[判断题]起升速度是指起重机在空载起动时,吊具的垂直位移速度。
A.正确
B.错误
[单项选择]关于片剂质量检查的叙述错误的是
A. 口含片、咀嚼片不需作崩解时限检查
B. 糖衣片应在包衣前检查其重量差异
C. 难溶性药物的片剂需进行溶出度检查
D. 凡检查含量均匀度的片剂不再进行片重差异限度检查
E. 凡检查溶出度的片剂不再进行崩解时限检查
[多选题]按种类分类,段场信号机可分为()。
A.入段/场信号机
B.出库列车信号机
C.列车信号机
D.调车信号机
[单项选择]制作牙合支托宜选用()
A. 直径为1.2mm的不锈钢丝
B. 直径为1.0mm的不锈钢丝
C. 直径为0.9mm的不锈钢丝
D. 直径为0.8mm的不锈钢丝
E. 直径为0.7mm的不锈钢丝
[单选题]CCBⅡ型电空制动机机车风源系统A71压力调整器为( )。
A.300±20kpa
B.400±20kpa
C.350±20kpa
[判断题]船舶带缆时,同一方向可使用不同用材质缆绳。 ( )
A.正确
B.错误
[判断题]证券自营业务买卖对象除了上市证券,还包括非上市证券。( )
[单选题](第二十三条)使用切割器具破拆时,要平稳操作、( )切割,切割器具前方不得站人。( )
A.折线
B.弧线
C.直线
D.弯线
[单项选择]Flourens would most likely argue that all of the following actions could be localized and differentiated in terms of the brain functions needed to perform them,EXCEPT
[单选题]我国第一个五年计划从 ( )
A. 1949—1954年
B. 1953—1957年
C. 1952—1956年
D. 1954--1958年
[单选题]成人心脏骤停最主要的病因是
A.心肌病;
B.急性心肌炎;
C.冠心病及其并发症;
D.主动脉瓣狭窄;
E.溺水;
[单选题]按照《山东省农村商业银行信贷资产风险分类实施细则》要求,常规风险分类( )迸行一次。
A.月
B.旬
C.半年
D.季
[简答题][2022-03-06 17:53:24.188
[判断题]在生产机械调速特性要求高的场合,可采用转速开环恒压频比控制的变频调速系统( )
A.正确
B.错误
[多项选择]在我国领域内没有住所的外国人,其所在国与我国未订立有关条约,当其委托我国律师代理民事诉讼时,从我国领域外寄交予授权委托书。该授权委托书要生效需经过的程序有:
A. 需寄至该国驻我国使领馆代为转交
B. 需经我国驻该国使领馆认证
C. 应当经所在国公证机关证明
D. 履行所在国规定的证明手续
[多选题]人类实践的具体形式日益多样化,从内容上看,实践可分为( )基本类型。
A.物质生产实践
B.社会政治实践
C.科学文化实践
D.虚拟实践
[多项选择]下列城市基础设施服务中,属于宏观层次的设施的有( )。
A. 铁路
B. 高速公路
C. 机场
D. 火车站
E. 邮电通信
[单项选择]Obviously television has both advantages and disadvantages.
In the first place, television is not only a convenient source of entertainment, but also a cheap one. With a TV set in the family people don’t have to pay for expensive seats at the theatre, or the cinema. Some people, however, think that this is where the danger comes from. The television viewers need do nothing. He makes no choice and exercises, no judgment. He is completely passive.
Television keeps one informed about what is happening. The most distant countries and the strangest customs are brought right into one’s sitting room. On television everything is much more living, much more real. Yet here again there is a danger. We get so used to looking at the movements on it, so dependent on its pictures that it begins to control our lives. People often say that their television sets have broken down and that they have suddenly found that they have far more time to do whatever they are interested. It makes us think
A. To arouse the reader’s happiness.
B. To introduce the theme of the whole passage.
C. To summarize the whole passage.
D. To sate the complete bad uses of TV.
[多选题]下列哪几项为公安人员八大纪律中的内容?( )
A.服从领导,听从指挥
B.遵守政策,遵守法律
C.不准泄露国家机密
[填空题]
Dolphins are not the only animals{{U}} (31)
{{/U}}humans that use sounds in an apparently intelligent manner. Whales
also use a complex system of sounds{{U}} (32) {{/U}}is similar in many
ways to a human language. One type of whale even sings, and its songs can{{U}}
(33) {{/U}}on for as long as three or four hours. What is more, they
can be heard under water at{{U}} (34) {{/U}}of more than 300 kilometers.
After analyzing one of these songs with the aid of a computer, Carl Sagan said
it{{U}} (35) {{/U}}at least a million "bits" of information. This is
approximately the same{{U}} (36) {{/U}}of "bits" as in a long poem like
the Odyssey.
Chimpanzees also use a system of different sounds
to communicate with each{{U}} (37) {{/U}}. One type of cry{{U}} (38)
{{/U}}to mean something like "danger in the air" or "big bird" and another
apparently means "danger on the ground" or "snake". When they{{U}} (39)
{{/U}}the first cry, they hi
[单选题]社会主义建设新时期解放思想的关键是怎样认识()。
A.毛泽东思想
B.资本主义
C.什么是社会主义、如何建设社会主义
D.经济全球化
[单项选择]β受体阻断剂类抗心绞痛药物()
A. 硝酸异山梨酯
B. 双嘧达莫
C. 美托洛尔
D. 地尔硫
E. 氟伐他汀
[单项选择]下列不属于可再生能源的是( )。
A. 风能
B. 生物能
C. 机械能
D. 石油
[单选题]道岔发生故障时,工务、电务部门应联合对道岔故障进行检查,根据道岔故障检查情况,( )采取相应处理措施。
A.由电务部门
B.由工务部门
C.由车务部门
D.由工务、电务部门分别
[多选题] 安全生产要素包括了( )内容。
A.安全文化
B.安全法制
C.安全责任
D.安全投入
E.安全科技
[单选题](单选题).氧气筒内氧气不能用尽,一般需留5.kg/cm。,其目的是()。
A.便于再次充气
B.防充气时引起爆炸
C.便于检查、氧气装置有无漏气
D.便于调节氧流量
[判断题]电力线路、光电缆、管路等跨越电气化铁路施工时,在接触网停电后即可进行。
A.正确
B.错误
[判断题]汽缸内燃烧室积炭过多就会影响缸体散热,使汽缸顶部局部温度过高而形成发火点,不会使柴油机工作粗暴。( )
A.正确
B.错误
[单选题]1.318. 第318题
弧垂过大或过小的危害是( )。
A.弧垂过大易引起导线碰线,弧垂过小因导线受拉应力过大而将导线拉断
B.弧垂过大易引起导线拉断,弧垂过小影响导线的载流量
C.弧垂过小易引起导线碰线,弧垂过大因导线受拉应力过大而将导线拉断
D.弧垂过小易引起导线拉断,弧垂过大影响导线的载流量
[单项选择]Excessive use of antibiotics is the chief cause of deafness and ______ muteness in children.
A. subsequent
B. continuous
C. consequent
D. successive
[填空题]This article is a good one on the whole except for some small (grammar)()mistakes.
[多项选择]劳动者享有下列哪些职业卫生保护权利?( )
A. 获得职业健康检查、职业病诊疗、康复等职业病防治服务
B. 了解工作场所产生或者可能产生的职业病危害因素、危害后果和应当采取的职业病防护措施
C. 要求用人单位提供符合防治职业病要求的职业病防护设施和个人使用的职业病防护用品,改善工作条件
D. 拒绝违章指挥和强令进行没有职业病防护措施的作业
[单选题]工贸企业开展隐患排查时,排查类型主要包括日常隐患排查、( )、专业性隐患排查、季节性排查、 节假日隐患排查等。。( )--本题1分
A.综合性隐患排查
B.不定期隐患排查
C.定期隐患排查