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【单选题】
阈电位是指A.
膜对K+通透性突然增大的临界膜电位
B.
膜对K+通透性突然减小的临界膜电位
C.
膜对Na+通透性突然增大的临界膜电位
D.
膜对Na+通透性突然减小的临界膜电位
E.
膜超极化到引起动作电位时的膜电位
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【简答题】用高效液相色谱法测定药物含量时应选用的色谱参数是 查看材料
【单选题】I did not attend the lecture by Pro. Jackson. I ____ but I ____ all this morning
A.
would, have washed
B.
could, have been washing
C.
would have, have been washing
D.
could have, had washing
【单选题】I did not attend the lecture by Pro. Jackson. I ____ but I ____ all this morning.
A.
would; have washed
B.
could; have been washing
C.
would have; have been washing
D.
could have; had washed
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