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【单选题】
星系与球状星团三者的关系为何( )A.
球状星团属于星系,星系属于星系团
B.
球状星团属于星系团,但不属于星系
C.
星系属于星系团,也属于球状星团
D.
星系属于球状星团,但不属于星系团
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举一反三
【单选题】In the absence of optimism, we are left with nothing but critics, naysayers, and prophets of doom. When a nation expects the worst from its people and institutions, and its experts focus exclusively o...
A.
ignore minor imperfections
B.
overemphasize flaws
C.
see both sides of a coin
D.
pin their hopes on improvements
【单选题】In the absence of optimism, we are left with nothing but critics, naysayers, and prophets of doom. When a nation expects the worst from its people and institutions, and its experts focus exclusively o...
A.
ignore minor imperfections
B.
overemphasize flaws
C.
see both sides of a coin
D.
pin their hopes on improvements
【单选题】–Why do you come back with nothing? -- I couldn’t buy the CD because I had______ money with me.
A.
a few
B.
few
C.
a little
D.
little
【单选题】I feel very sad that the young man's energetic initiative ______ with nothing in the experiment, for he met a lot of interference from the powerful authority.
A.
burned up
B.
tuned up
C.
pushed up
D.
ended up
【单选题】当天空过亮时,应如何放置中灰渐变镜来缩小天空与地面的明暗差距?
A.
拍摄时用较暗的一端覆盖天空与地面的中介面，即可降低此区域的通光亮。
B.
拍摄时用较暗的一端覆盖地面，即可降低此区域的通光亮。
C.
拍摄时用较暗的一端覆盖天空，即可降低此区域的通光亮。
【单选题】听力原文：When another Christmas came around with nothing but the usual cards, Jack couldn't help but feel a touch of disappointment. (25)
A.
Jack was a bit upset for another ordinary Christmas.
B.
Jack was always disappointed with Christmas.
C.
Jack touched the Christmas cards with disappointment.
D.
Jack didn't receive any cards this Christmas.
【简答题】文件服务器以______方式管理共享文件，网络工作站可以根据所规定的权限对文件进行读写以及其他操作。
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