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【单选题】
可引起心肌传导性降低的因素是A.
细胞长度缩短
B.
0期除极速度增大
C.
0期除极幅度增大
D.
心肌细胞部分去极化
E.
邻近末兴奋部位膜的兴奋性增高
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反馈参考答案：
举一反三
【单选题】In the sentence 'He gave me a book as a present', the relationship between 'gave' and 'me' is called .
A.
aspect
B.
tense
C.
government
D.
agreement
【单选题】The day before my history exam, I still hadn't ______ reading the first book on the list.
A.
seen about
B.
caught up with
C.
got around to
D.
sat for
【简答题】用( )反映轴上的键槽的深度,用( )表达轴上细小的工艺结构如退刀槽、定位孔等。
【单选题】对儿童生长发育规律描述,错误的是
A.
生长发育是一个连续的过程
B.
生长发育遵循一定的顺序
C.
有一定的个体差异性
D.
各系统器官发育的速度一致
E.
生长发育是由低级到高级
【单选题】The speech that Mr.Smith made today gave a strong ______ on the students.
A.
expression
B.
expectation
C.
reputation
D.
impression
【单选题】Mr.Smith gave me _____on studying English.
A.
some advice
B.
an advice
C.
some advice s
【单选题】Mr．Smith gave the attendants a wonder lecture the company in the international conference.
A.
on behalf'of
B.
owing to
C.
in the place of
D.
standing for
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