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【单选题】
休克代偿期的表现是
A.
血压稍升高,脉搏快,脉压缩小
B.
血压稍升高,脉搏快,脉压正常
C.
血压稍较低,脉搏慢,脉压正常
D.
血压稍升高,脉搏快,脉压无变化
E.
血压稍降低,脉搏快,脉压缩小
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举一反三
【单选题】— Did you remember to give her the book she asked for? — Yes. ____ I saw her, I remembered. [     ]
A.
While
B.
Once
C.
The time
D.
The moment
【单选题】I asked if I______see her.
A.
would
B.
can
C.
may
D.
might
【单选题】正丁醇和乙醚的沸点相差很大,而它们在水中的溶解度却相差并不大的原因是:
A.
它们都能与水形成氢键
B.
它们分子之间都能形成氢键
C.
(A)和 (D) 都有
D.
正丁醇可以形成分子间氢键,乙醚不可以
【单选题】—Did you remember to give her the book she asked for? --_______I saw her , I remembered.
A.
While
B.
Suddenly
C.
Right
D.
The moment
【判断题】在元素电势图上,若某物种的Φ 右 θ > Φ 左 θ ,则表明该物质不稳定
A.
正确
B.
错误
【简答题】A woman renewing her driver’s license at the County Clerk’s office was asked to state her occupation. She hesitated, uncertain how to classify herself. “What I mean is,” explained the recorder, “do yo...
【单选题】正丁醇和乙醚的沸点相差很大,而它们在水中的溶解度却相差并不大的原因是 ( )
A.
它们都能与水形成氢键
B.
它们分子之间都能形成氢键
C.
正丁醇可以形成分子间氢键,乙醚不可以
D.
( A ) 和 ( C ) 都有
【简答题】A woman renewing her driver’s license at the County Clerk’s office was asked to state her occupation.She hesitated, uncertain how to classify herself. “What I mean is,” explained the recorder, “do you...
【单选题】下列说法不正确的是
A.
HCl、HBr、HI的熔点沸点升高与范德华力大小有关
B.
H 2 O的熔点沸点大于H 2 S的是由于H 2 O分子之间存在氢键
C.
乙醇与水互溶可以用相似相溶原理解释
D.
甲烷与水分子间不能形成氢键这种化学
【单选题】I asked her _________her health. [     ]
A.
for
B.
about
C.
on
D.
in
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