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【简答题】
How will the Chinese ban on imports of rubbish affect the world and China itself?
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举一反三
【判断题】齿轮传动强度计算时,许用接触应力与零件表面硬度无关。
A.
正确
B.
错误
【单选题】Mr. Smith was very disappointed to see the car he had had _____ went wrong again.
A.
to be repaired
B.
repaired
C.
it repaired
D.
it
【判断题】下面势能曲线中, a 、 b 两点均为系统的稳定平衡点。
A.
正确
B.
错误
【简答题】1921年的诗集《_______》出版,突出表现了“”时代精神。
【单选题】Mr. Smith thought of himself as _______,and this accident had ________ effect on his life.
A.
a failure; a
B.
failure; an
C.
a failure; an
D.
failure; the
【单选题】Mr. and Mrs. Smith ______ in the past.
A.
had often stayed in a big hotel in London
B.
had traveled to many places
C.
often stayed in a small inn
【判断题】低压开关的灭弧常采用在断口上装灭弧栅。
A.
正确
B.
错误
【单选题】Tom had something to tell his manager, Mr. Smith, so he went to Mr. Smith’s place, entering the room and said,
A.
“ You ’ re not busy, I hope. ”
B.
“ Got a minute? ”
C.
“ Can I have a word with you, Mr. Smith? ”
【判断题】下面势能曲线中, a 、 b 两点均为系统的稳定平衡点
A.
正确
B.
错误
【单选题】无毒的白喉棒状杆菌获得产生白喉毒素的能力是因为
A.
带有Col因子
B.
带有R因子
C.
带有F因子
D.
感染毒性噬菌体
E.
感染β-棒状噬菌体
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