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【单选题】
成人缺铁性贫血的主要病因是A.
慢性失血
B.
铁的摄入不足
C.
铁的吸收不良
D.
铁的需要量增加
E.
骨髓造血功能下降
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举一反三
【单选题】Which of the following details about the bill is INCORRECT?
A.
The bill would make it a felony to be an illegal immigrant in the United States.
B.
The bill is not yet law.
C.
The bill proposes to erect fences along two-thirds of the U.S.-Mexico border.
D.
The bill would also penalize those who help or hire illegal immigrants.
【单选题】— Jane wasn't in when Jack came, was she? — _______, but she left a few minutes later. [ ]
A.
No, she was
B.
Yes, she was
C.
Yes, she wasn't
D.
No, she wasn't
【单选题】My sister with her boyfriend ______ England. You can call her next week.
A.
have gone to
B.
has gone to
C.
have been to
【单选题】Jane _______ a lot in the last few years. [ ]
A.
is changing
B.
has changed
C.
changing
D.
changed
【单选题】-Who is that girl over there? Is it your sister? -No, it _______be her. She is much taller. [ ]
A.
can't
B.
needn't
C.
may not
D.
mustn't
【单选题】—Jane wash’t in when Jack came，was she? —________，but she returned a few minutes later．
A.
No，she was
B.
No，she wasnt
C.
Yes，she was
D.
Yes，she wasnt
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