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【单选题】
下面哪条不是齿轮传动的特点?
A.
过载保护
B.
结构紧凑
C.
效率高
D.
寿命长
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【判断题】发生拉曼散射的结果将导致WDM系统中短波长通路产生过大的信号衰减,从而限制了通路数。
A.
正确
B.
错误
【单选题】The text suggests that early settlers in New England ______.
A.
were mostly engaged in political activities
B.
were motivated by an illusory prospect
C.
came from different intellectual backgrounds.
D.
left few formal records for later reference
【单选题】Early settlers_______ their survival _______ hard work and determination to succeed.
A.
corresponded; with
B.
owed ; to
C.
adapted; to
D.
attached; to
【单选题】Early settlers believe that a sunken body could be located by casting into a stream ______.
A.
any bandanna
B.
a bandanna that had been worn by a drowned man
C.
a magic bandanna
D.
a bandanna that had been blessed
【简答题】Both the early European settlers and the Aborigines had to______about natural products of Australia.
【单选题】In the early period, European settlers resorted to deceit and even war to deal with ______ who inhabited the American continent earlier than them.
A.
the Blacks
B.
the Indians
C.
the Mexicans
D.
the Spaniards
【判断题】The early settlers in the colony discovered a way to make money by growing tobacco. ()
A.
正确
B.
错误
【多选题】在支气管树中,下列有肺泡开口的是
A.
细支气管
B.
呼吸性细支气管
C.
肺泡管
D.
终末细支气管
E.
小支气管
【判断题】职业证书并非多多益善,大学生应结合自己的职业规划,考取具有竞争力的执业证书。()
A.
正确
B.
错误
【单选题】Early settlers usually moved their belongings west in wagon trains.
A.
relations
B.
supplies
C.
livestock
D.
possessions
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