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【单选题】
用SQL语言描述显示表“新生档案”中的全体学生的“姓名”“性别”“入学成绩”,以下描述中正确的是________。A.
Select 姓名,性别,入学成绩From“新生档案”
B.
Select * From“新生档案”
C.
Select * From新生档案
D.
Select姓名,性别,入学成绩From新生档案
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举一反三
【单选题】Which of the following literary quotes has metaphor in it?
A.
Oh, my love is like a red, red rose/That's newly sprung in June. (Robert Burns)
B.
All the world's a stage/And all the men and women merely players. (William Shakespeare)
C.
Spring, the sweet spring, is the year's pleasant king. (Thomas Nashe)
D.
For all men live by truth, and stand in need of exression. In love, in art, in avarice, in politics, in labor, in games, we study to utter our painful secret. The man is only half himself, the other half is his expression. (Ralph Waldo Emerson)
【单选题】My mother cooks dinner for us every day. We don’t need to do _______ before dinner.
A.
anything
B.
something
C.
nothing
D.
any thing
【简答题】吸收是分离______混合物的最常用的单元操作。
【单选题】He took time out from campaigning to his mother to dinner.
A.
chase
B.
regard
C.
accompany
D.
cover
【简答题】吸收是利用气体在液体中 的差异分离气体混合物的单元操作。
【简答题】吸收是分离 的单元操作，它是利用混合气体中各组分在吸收剂中 的差异，而达到分离的目的。
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