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【单选题】
严重贫血时血红蛋白量低于A.
120g/L
B.
110g/L
C.
90g/L
D.
60g/L
E.
30g/L
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举一反三
【简答题】In _______, he invented Scuba diving epuipmnent.
【单选题】—What about _________ scuba diving right now? —That sounds really _________. [ ]
A.
to have; good
B.
having; well
C.
having; better
D.
having; cool
【单选题】—I had a great time in the summer holidays.We went scuba－diving in Hawaii. —Wow！________
A.
I'm going to Hawaii，too.
B.
How generous you are!
C.
That sounds really cool!
D.
Enjoy yourself!
【单选题】7) According to the writer, one of the most diffcult things he has ever done is ______. A) swimming B) parasailing C) scuba diving D) marathon racing
A.
swimming
B.
parasailing
C.
scuba diving
D.
marathon racing
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