皮皮学，免费搜题
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【单选题】
抗体的化学本质是A.
蛋白质
B.
维生素
C.
无机盐
D.
糖类
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反馈参考答案：
举一反三
【单选题】--What were you up to when she dropped in?--I ______ for a while and ______ some reading.
A.
was playing, was going to do
B.
played, did
C.
had played, was going to do
D.
had played, did
【单选题】—What were you up to when she dropped in?—I ______ for a while and ______ some reading.
A.
was playing, was going to d0
B.
played, did
C.
had played, was going to do
D.
had played, did
【单选题】What does the woman suggest the man to do?
A.
Read some novels in English.
B.
Read some easy articles in English first.
C.
Borrow some articles in English.
【单选题】Some people suggest changing the date for the college entrance exams into ______ Saturday and Sunday of the first week of June, which I think is ______ good advice. [ ]
A.
/ ; /
B.
the; the
C.
the; a
D.
the; /
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