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【单选题】
生后唯一的造血场所是A.
肝脏
B.
骨髓
C.
脾脏
D.
卵黄囊
E.
骨骼
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举一反三
【单选题】—You never stay up till midnight, do you? —___________. But I think it’s bad for our health.
A.
No, never
B.
No, sometimes
C.
Yes, never
D.
Yes, sometimes
【单选题】—Time is limited. I have to finish this tonight. —But it’s midnight now and you should have a sleep ______ much work you have to do.
A.
however
B.
no matter
C.
although
D.
whatever
【单选题】-----Will you attend tomorrow’s meeting? -----No, _____ I am invited, I will not go there.
A.
even though
B.
if
C.
unless
D.
because
【单选题】— Excuse me, is this shop open all day? — ____. It's only open from 9 a.m.to midnight. [ ]
A.
Well, I'm not sure
B.
Oh, it's nothing special
C.
Sorry, I'm afraid not
D.
Yes, of course not
【单选题】—Jack, you look tired today. What's wrong? —I was ____ busy ____ I didn't go to bed until midnight yesterday. [ ]
A.
too; to
B.
so; that
C.
enough; to
D.
such; that
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