用电压表测量电压时,电压表必须和被测量电路()。A.串联 B.并联 C.混联 D.A

题型:单项选择题

问题:

用电压表测量电压时,电压表必须和被测量电路()。

A.串联

B.并联

C.混联

D.A、B、C均可

考点:电力线路工电力线路初级工电力线路初级工题库
题型:单项选择题

下列因素中,属于划分社会阶层主要依据的是()。

A.年龄

B.职业

C.收入

D.受教育程度

E.风俗习惯

题型:单项选择题

阅读理解。                            

     It's 5:30 in the afternoon. School is over. It's time for student to relax.

     Look! Some boys are playing soccer and some are playing basketball on the playground (操场).

Most girls don't like ball games because they think they are boring. They like to do other sports, such as

swimming and dancing. Look, some girls are swimming in a big swimming pool. In the gym (健身馆),

Maria and her friends are dancing to the music. Some students are singing together in the classroom

building. Who are they? Oh, they are some students of Class Four. They are cleaning their classroom

now. After that, they can play with other students.

根据上面内容判断正误,正确的写(T) , 错误的写(F)。

( ) 1. After 5:30pm, the students don't have classes.

(     ) 2. On the playground, some boys are playing basketball and soccer.

(     ) 3. We can't see any students swimming in the pool now.

(     ) 4. Some students from Class Four are singing together in the classroom.

(     ) 5. Maria is dancing on the playground.

题型:单项选择题

下面加粗的成语使用不正确的一项是[ ]

A.面对破坏环境的行为,我们绝不能袖手旁观

B.同学们聚在一起,享受着天伦之乐

C.圆明园流失文物鼠首和兔首铜像被公然拍卖,大家义愤填膺

D.有些人一旦拥有了名利,就变得患得患失,不愿再冒风险放手一搏。

题型:单项选择题

一位学者认为:“从一定意义上可以说,如果没有中国同美国的关系正常化,也就没有20世纪70年代末中国开始实行的对外开放政策以及中国对外经济关系的蓬勃发展。”这一结论的主要依据是中美关系正常化[ ]

A.为中国经济社会发展提供了良好的环境

B.标志着美国对中国封锁政策的彻底失败

C.掀起了西方国家与中国建交的热潮

D.大大提高了中华人民共和国的国际地位

题型:单项选择题

某幼儿园发现一麻疹患儿,为了控制麻疹进一步蔓延,采取的措施中不恰当的是()。

A.暂不接受其他易感儿入托

B.整个幼儿园中小儿每天口服利巴韦林(三氮唑核苷)

C.易感者接触麻疹后应隔离检疫3周

D.体弱多病的易感儿应立即肌肉注射丙种球蛋白

E.体健易感儿接触后2天内应急接种麻疹疫苗

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