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【单选题】
渗碳体的碳含量为( )。
A.
4.3%
B.
0.0218%
C.
0.77%
D.
6.69%
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举一反三
【单选题】如果把梭罗没有来到瓦尔登湖,继续生活在城市中,那么他的生活可能是什么样的?
A.
每天加班加点地辛苦赚钱,一心只想在市中心买大房子。
B.
他的生活非常懒散,每天上班迟到,中午点外卖,回家看剧。
C.
他只要有机会就会约上好友或者独自一人去郊游,感受大自然。
D.
他被灯红酒绿的城市生活吸引着,每天过着纸醉金迷的生活。
【单选题】在杨氏双缝干涉实验中,相邻亮条纹和相邻暗条纹的间隔与下列的哪一种因素无关?
A.
光波波长
B.
屏幕到双缝的距离
C.
干涉级次
D.
双缝间隔
【简答题】A.He thought the noise was caused by the flu. B.He promptly realized an earthquake happened. C.He went downstairs and screamed. D.He went back to his bedroom to sleep.
【单选题】_______ great man Huang Furong is! He lost his life while saving the students in the Yushu earthquake.
A.
How
B.
How a
C.
What
D.
What a
【判断题】基督教发展史上的第一次分裂主要由宗教改革引发。
A.
正确
B.
错误
【简答题】On 27th February 2008, something very unusual happened in the UK; there was a rather large earthquake. It was the biggest earthquake in 25 years in the UK. There have been very small tremors in the pa...
【单选题】The collected money should be made good use __________the people who suffered a lot in the earthquake.
A.
of helping
B.
to help
C.
to helping
D.
of to help
【多选题】为了减少线路损耗和提高输送容量,新提出的输电方式有( )。
A.
特高压交流输电
B.
特高压直流输电
C.
紧凑型交流输电
D.
灵活交流输电
【单选题】The new building here are all reinforced with steel, ______ safety in case of an earthquake.
A.
for the sake of
B.
for good
C.
for instance
D.
for the better
【判断题】变压器的高压绕组就是一次绕组,低压绕组就是二次绕组。
A.
正确
B.
错误
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