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【单选题】
What did the UN call on nations to do about CO2 and other greenhouse gases in 1992?
A.
To sign a new climate treaty at Rio.
B.
To draft an agreement among UN nations.
C.
To force the United Sates to reduce its emissions.
D.
To limit the release of CO2 and other gases.
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【单选题】振荡回路中电流大,且频率较高。在此回路中所采用的紧固件,最好为( )。
A.
电磁材料
B.
绝缘材料
C.
非磁性材料
D.
磁性材料
【单选题】(高中Unit 7)alcohol的中文翻译是下列哪一个?(此题为单选题)
A.
可乐
B.
C.
酱油
【判断题】蜗杆的轴心线应在蜗轮轮齿的对称中心平面内
A.
正确
B.
错误
【判断题】蜗杆副传动机构的装配,蜗杆的轴心线应在蜗轮轮齿的对称中心平面内。
A.
正确
B.
错误
【单选题】581. 振荡回路中电流大,且频率较高。在此回路中所采用的紧固件,最好为( )。
A.
电磁材料
B.
绝缘材料
C.
非磁性材料
D.
磁性材料
【单选题】听力原文: Mr. Bush's Democratic party opponents repeatedly pointed out what had happened to the job market in his first term. He was the first President to seek re-election since the great depression of t...
A.
More people having jobs.
B.
Fewer people having jobs.
C.
Keeping the same repeatedly.
D.
People don't like their jobs.
【简答题】振荡回路中电流大,且频率较高。在此回路中所采用的紧固件,最好为()。
【单选题】We didn't know what had happened to her until we () the accident in the newspaper.
A.
read
B.
read of
C.
read over
D.
read from
【单选题】496. 振荡回路中电流大,且频率较高。在此回路中所采用的紧固件,最好为( )。
A.
电磁材料
B.
绝缘材料
C.
非磁性材料
D.
磁性材料
【单选题】What had happened to the patients under study?
A.
They had just survived an accident.
B.
They had just had an operation.
C.
They had just injured their colons.
D.
They had just made some pouches.
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