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【单选题】
采用一对直齿圆柱齿轮传递两平行轴之间的运动时,如果要求两轴转向相反,应采用( )传动。A.
内啮合
B.
外啮合
C.
齿轮齿条
D.
蜗轮蜗杆
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【单选题】I am _______ that he has not answered my letter.
A.
bothered
B.
interrupted
C.
interfered
D.
annoyed
【单选题】奥巴马政府推出“重返亚洲”战略，通过加大政治、经济、军事上在亚太地区的投入，达到领导和控制亚太地区的目的。同时，世界各大国也不断调整战略目标，各种力量正迅速分化和组合，使得国际格局更加复杂多变。这说明（） ①世界多极化发展是一个漫长曲折的充满复杂斗争的演变过程 ②大国之间只有具体利益差别，没有共同利益 ③单极与多极、称霸与反霸的斗争成为今后相当长一个时期国际斗争的焦点 ④美国唯一超级大国的地位是不...
A.
①③
B.
②④
C.
①②
D.
③④
【单选题】I was not hearing to the teacher, or else I ___ his questions.
A.
answered
C.
had answered C. would have answered C. have answered
【单选题】Mr. Hopkins has not yet answered my question ______ I can go with him to______he calls the Underground Treasure House next week.
A.
that; which
B.
that; where
C.
whether; that
D.
whether; what
【简答题】_______ he answered my question, I was still confused.
【单选题】Li Lei has not yet answered my question______I can go with him to________he calls the Natural Underground Gallery next week.
A.
that; which
B.
whether; what
C.
whether; that
D.
that; where
【单选题】面对“义”与“利”的抉择,浏阳市公安局局长公安二级英模......奋不顾身解救人质,选择了把安全留给群众,把危险留给自己。
A.
李贝
B.
匡兵
C.
李江
D.
沈学军
【单选题】he I answered the phone, for both of us were in the garden.
A.
Either...or
B.
Neither...nor
C.
All...and
D.
None...and
【单选题】I______him a lift to his house, but he ________ with thanks.A．offered; answered B．offered; decl
A.
32. I______him a lift to his house, but he ________ with thanks. A．offered; answered
B.
offered; declined
C.
have offered; has declined
D.
presented; answered
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