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【单选题】
You may borrow the book, ______ that you do not lend it to anyone else.A.
on occasion
B.
on condition
C.
on purpose
D.
only if
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举一反三
【单选题】She __________ the secret that Mary was divorced once.
A.
let off
B.
let down
C.
let up
D.
let out
【简答题】氢在金属中的存在形式包括:(__)、(__)、(__)和(__)。
【单选题】I____ single, you _____ married and Judy _____ divorced.
A.
am, are, is
B.
am, is, are
C.
is, am, are
D.
are, is, am
【单选题】听力原文：W: Hey, Jack. Now that the midterms are over, a bunch of us should get away for the weekend to go canoeing. Wanna come along? M: Well, uhe, it'd be great to get away, but I've never done it befor...
A.
To invite him to a cookout.
B.
To ask if she can borrow his car.
C.
To tell him about a trip she took.
D.
To convince him to go on a canoe trip.
【多选题】腐殖质对重金属迁移和转化的影响包括:( )
A.
可抑制金属以碳硬盐、硫化物和氢氧化物沉淀形式存在。
B.
颗粒物对重金属的吸附。
C.
对底泥中汞有显著的溶出作用。
D.
影响重金属对水生生物的毒性。
【简答题】A)divorced B)separated C)isolated D)broken
【简答题】The percentage of remarriage among divorced Americans is ______.
【单选题】—Hey, Jack. Waste paper ________ here. —Sorry, I won’t do that again.
A.
cannot throw
B.
cannot be thrown
C.
will not throw
D.
will not be thrown
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