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【单选题】
与抗原抗体结合无关的因素是A.
抗原抗体结构的互补性
B.
反应体系的酸碱度
C.
反应温度
D.
抗原分子量的大小
E.
反应体系的离子强度
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举一反三
【单选题】Yukio Hatoyama has been elected _____ Prime Minister of Japan, and all the Japanese are looking forward to _____ new Japan under his leadership.
A.
/;/
B.
the; a
C.
/; a
D.
the; /
【简答题】“Goodbye, then,” she said, without even ________ from her book. A．looking down B．looking up C．looking away D．looking on
【简答题】A．She was looking for the manager of the store. B．She was looking for a CD for the customers. C．She was looking for the address of the manager. D．She was looking for the couple who wanted the CD.
【单选题】Mary is looking for the book she lost yesterday.（ ）
A.
trying to find
B.
looking up
C.
looking at
D.
finding
【单选题】Do you know _____? [ ]
A.
whom she is looking after
B.
who is she looking
C.
who is she looking after
D.
whom she is looking
【单选题】2 Mary is looking for the book she lost yesterday
A.
trying to find
B.
looking up
C.
looking at
D.
finding
【单选题】She was ( ) the grandchildren again.
A.
looking for
B.
looking forward to
C.
looking around
【单选题】'Goodbye, then,'she said, without even ________ from her book.
A.
looking down
B.
looking up
C.
looking away
D.
looking on
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