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【多选题】
电子商务中的任何一笔交易都包括( )A.
资金流
B.
信息流
C.
现金流
D.
物流
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】— Did you hand in your application for a league member? — Not yet. If I _____ to see my father, I would have. [ ]
A.
didn't go
B.
haven't gone
C.
wouldn't have gone
D.
hadn't gone
【单选题】— How I wish I had worked harder before the examinations. — If you had, you _____them already. [ ]
A.
would pass
B.
would have passed
C.
were to pass
D.
will have passed
【多选题】.光在光合作用中的重要作用主要表现为( )。
A.
光是光合作用的能量来源
B.
光能调控气孔开放
C.
光是叶绿素形成的必要条件
D.
光是叶绿体发育的必需条件
E.
光影响着Rubisco的活性
【单选题】If I_________you would drop in, I would have stayed home waiting for you.A．have knownB．knewC．wou
A.
33. If I_________you would drop in, I would have stayed home waiting for you. A．have known
B.
knew
C.
would know
D.
had known
【简答题】We are often told not to be __________(紧张) in the examinations.
【单选题】—May I put my coat here? —No, you _______. If you do, you may lose it. [ ]
A.
needn't
B.
won't
C.
wouldn't
D.
mustn't
【简答题】主光的作用是:显示拍摄对象的____ 、表现画面的____和物体的表面结构。
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