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【多选题】
兴奋在同一细胞上传导的特点是 （ ）A.
在有髓纤维上是跳跃传导
B.
不衰减传导
C.
靠局部电流的方式进行
D.
双向传导
E.
电紧张性扩布
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反馈参考答案：
举一反三
【单选题】Our teacher was very happy because failed the examination.
A.
everyone
B.
none
C.
both
D.
someone
【单选题】We went to see her ______ our teacher was ill in hospital . [ ]
A.
when
B.
during
C.
because
D.
however
【单选题】下列化学因数的表示式应为( ),被测组分Fe,沉淀形式Fe(OH) 3 ·XH 2 O 称量形式Fe 2 O 3
A.
2Fe／Fe 2 O 3
B.
Fe／Fe(OH) 3 ·XH 2 O
C.
Fe／Fe(OH) 3
D.
Fe 2 O 3 ／2Fe
【简答题】完形填空： It was Children's Day yesterday, we 1 the park. Our teacher was 2 us. 3 many people there. Some Young Pioneers (员) 4 near the river. 5 sang and danced. There were some 6 on the river. There w...
【单选题】Our teacher was trying to an accurate picture of history.
A.
draw
B.
present
C.
take
D.
write
【简答题】心肌自动节律性
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