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【单选题】
消除视差应()。A.
先调目镜调焦螺旋,再调物镜调焦螺旋,使目标成像平
B.
先调物镜调焦螺旋,再调目镜调焦螺旋
C.
,微倾螺旋
D.
脚螺旋
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举一反三
【单选题】According to the passage, what has been a major focus of research about Mars?
A.
How Mars compares to other planets in the solar system
B.
Who built the network of canals on the surface of Mars
C.
Whether signs of water indicate that life has existed on Mars
D.
How soon astronauts from Earth will be able to go to Mars
【简答题】Oggi studio un pò di storia.
【简答题】FA022 多仓混棉机的混和原理是逐仓喂入、 __________ 、____________、 不同时间喂入的原棉在同一时间输出,简称 ___________混合(填时差或程差)
【判断题】Tra i dolci ci sono il Panettone, un dolce di Milano, e il pandoro, un dolce di Verona.
A.
正确
B.
错误
【简答题】A．Scientists from 'Mars Underground' want to stay on Mars for a lifetime. B．Scientists from 'Mars Underground' have been paying attention to the manned missions that we have been sending to Mars. C．Ev...
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