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【多选题】
分光计调节最终调节到的程度是?( )A.
望远镜能接收平行光
B.
平行光发出平行光
C.
载物台垂直于分光计中心轴
D.
望远镜和平行光管垂直于分光计中心轴
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【单选题】听力原文：M: Jane, you won’t be able to get to the airport in time to catch the ten o’clock flight. W: I realize that now. I’ll have to get my ticket changed. Q: What will the woman have to do? (16)
A.
Buy a ticket for the ten o'clock flight.
B.
Ask the man to change the ticket for her.
C.
Go to the airport immediately.
D.
Switch to a different flight.
【单选题】One of the most interesting of all studies is the study of words and word origins. Each language is【1】of several earlier languages, and the words of a language can sometimes be traced【2】through two or...
A.
collected
B.
made
C.
contained
D.
composed
【单选题】Unlike the origins of most nations, America’s origins are not ______ in the mists of time.
A.
far away
B.
taken after
C.
obscured
D.
viewed
【简答题】On the origins of racism 1_____ over the origins of racism often suffer from a lack of clarity over the term. Many mix recent forms of racism with earlier forms of 2_____ and national conflict. In mos...
【判断题】The origins of etiquette—the conventional rules of behavior. and ceremonies observed in polite society—are complex. One of them is respect for authority. From the most primitive times, subjects(臣民) sh...
A.
正确
B.
错误
【单选题】I ___ on my report next week so I won’t be able to meet you any day.
A.
am working
B.
will be working
C.
was working
D.
have been working
【单选题】The Origins of Theater In seeking to describe the origins of theater, one must rely primarily on speculation, since there is little concrete evidence on which to draw. The most widely accepted theory,...
A.
changed
B.
debated
C.
created
D.
supported
【判断题】The theories about the origins of language are not at most a speculation.
A.
正确
B.
错误
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