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【单选题】
B细胞识别抗原决定簇的特点是A.
特异性识别隐蔽抗原决定簇
B.
特异性识别载体与隐蔽的抗原决定簇
C.
特异性识别载体决定簇
D.
特异性识别抗原分子表面的决定簇
E.
特异性识别所有的抗原决定簇
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【单选题】(2009福州市高中毕业班第一次单科质量检查)There are altogether fifty-six students in our class, is a new comer from a faraway mountain village.
A.
the most hard-working of who
B.
of whom the most hard-working
C.
the most hard-working of them
D.
but the most hard-working of whom
【单选题】A flask contains a mixture of He and Ne at a total pressure of 2.6 atm. There are 2.0 mol of He and 5.0 mol of Ne in the flask. The partial pressure of He is __________ atm.
A.
9.1
B.
6.5
C.
1.04
D.
0.74
E.
1.86
【简答题】完形填空。 You'll see a new doctor at a hospital near London if you go there. He's very clever, 1 he never speaks. He can work 24 hours a day and never gets 2 . He's one metre tall and has a face 3 a TV sc...
【单选题】There was a __________ quarrel between the husband and the wife; after that the wife left home and never came back. [ ]
A.
sensitive
B.
serious
C.
violent
D.
strict
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