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【单选题】
关于心肌收缩的特点，错误的是A.
同步收缩（全或无式收缩）；
B.
不发生强直收缩；
C.
对细胞外钙离子依赖；
D.
缺氧、酸中毒可使收缩力下降；
E.
交感神经兴奋可使收缩力下降；
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【单选题】1912年上海《民立报》发表谭人凤《粤汉铁路说贴》：世界大势，是由水运而趋陆运。故欧美各邦路线密若蛛网。近且有横贯欧亚之大计划。盖国势随路线而扩张，事业因交通而发展。„„我国幅员广阔，为统一计，沿边各路，方亟待第次兴办„„此国策可以促进实业、巩固边防。由此可见（）
A.
作者积极主张推进交通近代化
B.
民国政府重视铁路交通事业发展
C.
甲午战争后外国资本输出加剧
D.
西方列强支持中国铁路事业发展
【单选题】class ClassA{ } class ClassB extends ClassA { } class ClassC extends ClassB { } ClassA是ClassC的( )。
A.
直接父类
B.
间接父类
C.
直接对象
D.
间接对象
【单选题】若已知表面传热系数为 50W/( m 2 · K) ,表面面积 2 平方米,则对流换热热阻为多少 ?
A.
0.01(K · m 2 )/W
B.
100W/(m 2 · K)
C.
100W/K
D.
0.01K/W
【单选题】Dating consultant Zhou Xiaopeng predicts that when people born in 80s or 90s become parents, what changes will take place as described in “When people born in 80s or 90s become parents, they won’ t wa...
A.
They will act the same way as their own parents.
B.
Things won’ t change much.
C.
What they experienced when they were young will repeat.
D.
They won’ t apply the same pressure on their children.
【简答题】Surviving Hurricane Sandy( 飓风桑迪) Natalie Doan,14, has always felt lucky to live in Rockaway, New York. Living just a few blocks from the beach, Natalie can see the ocean and hear the waves from her ho...
【简答题】A．group B．class C．college D．club
【单选题】Which of the following is TRUE according to the passage?A．Parents quarrel because t
A.
29． Which of the following is TRUE according to the passage? A．Parents quarrel because they don't love each other．
B.
lf your parents often quarrel．don't leave them alone．
C.
No one wants a family with quarreling or fighting．
D.
When parents are angry．they think much about children．
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