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【单选题】
以下关于描述紫绀错误的为A.
紫绀是缺氧的表现
B.
红细胞增多症时可以出现紫绀
C.
缺氧一定会导致紫绀
D.
重度贫血时可以不出现紫绀
E.
紫绀是血液中脱氧血红蛋白增多至皮肤粘膜呈青紫色的现象
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举一反三
【单选题】What is the main idea of this passage?
A.
A website narrows the gap between different cultures.
B.
A final barrier breaks down after continuous efforts.
C.
A man devotes himself to understanding among people.
D.
A book of tough questions helps confront stereotypes.
【简答题】A．The Philippines. B．Mexico. C．Brazil. D．Guatemala.
【单选题】Whats the main idea of this news item?
A.
Officials in the Philippines are incompetent at overcoming floods.
B.
Natural disasters hit the Philippines and caused casualties.
C.
Evacuation centers in the Philippines need to be improved.
D.
The northern Philippines have been pounded by heavy rain.
【单选题】What prevents Israeli and PLO negotiators from solving their problems?
A.
The fundamental differences between them.
B.
Their reluctance to compromise.
C.
Their desire to acquire more land.
D.
Their unwillingness to talk to each other.
【简答题】A．The Philippines. B．Brazil. C．Mexico. D．Guatemala.
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