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【单选题】
学生开始参与实验室工作前接受实验室安全教育的规定?( )
A.
有条件的可以进行安全教育
B.
必须进行安全教育
C.
可以选择性的进行安全教育
D.
实验室安全教育不一定人人需要
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参考答案:
举一反三
【单选题】Following two days of shooting along their borders, the two countries have______diplomatic relations.
A.
broken down
B.
put down
C.
broken off
D.
put off
【多选题】The Ricardian model demonstrates that A) trade between two countries will benefit both countries. B) trade between two countries may benefit both regardless of which good each exports. C) trade betwee...
A.
trade between two countries will benefit both countries.
B.
trade between two countries may benefit both regardless of which good each exports.
C.
trade between two countries may benefit both if each exports the product in which it has a comparative advantage.
D.
D) trade between two countries may benefit one but harm the other.
E.
trade between two countries always benefits the country with a larger labor force.
【多选题】针式打印机字车机构是一个比较复杂的装置,由多个部件组成,字车机构主要包括字车、导轨、还包括( )等。
A.
字车驱动电机;
B.
传动齿形皮带;
C.
压纸杆;
D.
出纸辊;
E.
齿带轮
【单选题】Interest rates between two countries tend to converge if:
A.
both countries have a financial account surplus.
B.
both countries have a current account surplus.
C.
the residents of the two countries believe that a foreign asset is as good as a domestic one.
D.
the residents of the two countries prefer domestic assets to foreign assets.
【简答题】Which two countries will he visit?
【单选题】下列关于幼儿园书籍,教具,玩具,桌椅的卫生要求表述中,正确的是
A.
为了培养幼儿勤俭节约的习惯,已脏破的书籍鼓励继续使用
B.
铅笔笔芯不宜太软,否则字迹太浅,易导致眼疲劳
C.
玩具的大小,轻重应适合幼儿使用
D.
合适的桌椅应与小腿高相适应,适宜的椅深应是大腿的后4分之3置于椅面上
【单选题】The talk between the two leaders was aimed at ending the long        of war between the two countries.
A.
sense
B.
state
C.
case
D.
condition
【判断题】各种仪表和连接导线接入热电偶构成测量回路,使热电动势减小
A.
正确
B.
错误
【单选题】It seems impossible for the two neighboring countries to arrive at a ________ on the conflict in the near future.
A.
comprehension
B.
compromise
C.
combination
D.
competence
【判断题】各种仪表和连接导线接入热电偶构成测量回路,会使热电势减小。
A.
正确
B.
错误
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