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【单选题】
手动对焦时,可以通过手工转动镜头上的( )来调节相机镜头实现照片清晰的对焦。
A.
B.
焦距环
C.
光圈环
D.
对焦环
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参考答案:
举一反三
【多选题】香豆素类成分的生物活性主要有 ( )
A.
抗菌作用
B.
光敏活性
C.
强心作用
D.
植物生长调节
E.
抗凝血作用
【单选题】听力原文:M: Bill was a great guy. He was drowned while rescuing a child from the icy water of the fiver yesterday. W: Well, as far as I know that was not the first dangerous situation he was in. Which of ...
A.
Robust.
B.
Brave.
C.
Generous.
D.
Dangerous.
【多选题】香豆素类成分的生物活性主要有( )
A.
抗菌作用
B.
光敏活性
C.
强心作用
D.
保肝作用
E.
抗凝血作用
【单选题】The icy conditions made our travel dangerous. So () going by car we took the underground.
A.
instead of
B.
in addition to
C.
as well as
D.
at the cost of
【单选题】It was reported that two roads being closed in Teesdale _____icy road conditions.
A.
resulted in
B.
resulted from
C.
brought about
D.
led to
【单选题】电镜下中心粒的超微结构微管排列是
A.
6组单管
B.
9组三联管
C.
9组二联管
D.
6组二联管
E.
6组三联管
【单选题】The only places in Australia that experience regular winter snowfall and icy conditions are
A.
the eastern coastal areas of Queensland
B.
the Blue Mountains
C.
the New England Tableland
D.
the highest peaks of the Snowy Mountains and Victorian Highlands
【单选题】Icy road conditions in Teasdale ___________ two roads being closed.
A.
came about
B.
came across
C.
resulted in
D.
resulted from
【多选题】香豆素类成分的生物活性主要有( )
A.
抗菌作用
B.
光敏活性
C.
强心作用
D.
保肝作用
【判断题】通风装置用以调节车内的气流和换气。
A.
正确
B.
错误
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