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【单选题】
神经细胞在受到一次阈上刺激后,其兴奋性的变化是( )。A.
绝对不应期-相对不应期-超-低
B.
相对不应期-绝对不应期-低-超
C.
绝对不应期-相对不应期 -低-超
D.
相对不应期-绝对不应期-超 -低
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皮皮学刷刷变学霸
举一反三
【单选题】Mannie gave Donna his excuse for being late, but Donna seemed incredulous.This means
A.
Donna believed him.
B.
Donna ignored him.
C.
Donna did not believed him.
D.
Donna did not ignore him.
【单选题】“How __ he ___ that?” all of them shouted
A.
dare, said
B.
dared, says
C.
did, dared to say
D.
did, dare to say
【简答题】Donna Smith
【单选题】When I was your age, I dared to go out alone at night,______ I?
A.
dare
B.
didn't
C.
did
D.
dared
【单选题】Donna is 5 feet, 2 inches tall. Donna's sister is 5 feet, 6 inches.
A.
Donna isn't as tall as her sister
B.
Donna's sister is as tall as Donna
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