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【单选题】
O 2 在血液中运输的主要形式是A.
物理溶解
B.
形成 HbO 2
C.
形成碳酸氢盐
D.
形成去氧 Hb
E.
形成 HbNHCOOH
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【单选题】—_____ was your last weekend? —It was not bad. [ ]
A.
How about
B.
How
C.
What
D.
What about
【单选题】--____ has your grandpa lived here? --Since last year.
A.
How long
B.
How often
C.
How soon
D.
How far
【单选题】In the text, 'it's a chance in a million.' (Line 2, Para. 1) means that ______.
A.
it is common
B.
it's extremely unusual
C.
it's lucky
D.
it's impossible
【单选题】The word 'disparaging' (Line 5, Para. 3) most probably means ______.
A.
humorous
B.
false
C.
complimentary
D.
derogative
【单选题】which of the following is the meaning of prefix in the the word "hemiplegia"?
A.
three
B.
total
C.
two
D.
half
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