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【单选题】
患者女性,76岁。高浓度吸氧2天,提示患者可能出现氧中毒的表现是A.
轻度发绀
B.
显著发绀
C.
三凹征明显
D.
干咳、胸痛
E.
动脉血PaCO2> 12.0kPa
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举一反三
【单选题】After seeing the movie______.
A.
the book was read by him
B.
the book made him want to read it
C.
he wanted to read the book
D.
the reading of the book interested him
【简答题】As robots are increasingly playing a part in society, we need to consider whether and how machines can learn morality. While robots can't be ethical ( 伦理的 ) agents in themselves, we can program them t...
【简答题】A.It saves much time to watch the movie than to read the book． B.The movie call be understood after reading the book． C.The plots are easily followed in the book than in the movie． D.It is more horrib...
【简答题】“冰雹猜想”,又叫“角谷猜想”,是由日本数学家角谷静发现的一种数学现象,同时角谷静提出一切自然数都具此种性质的设想,故称“角谷猜想”。它的具体内容是:以一个n为例,如果n为偶数,就将它变为n/2,如果除后变为奇数,则将它乘3加1(即3n+1)。不断重复这样的运算,经过有限步后,是否一定可以得到1?据的数学家攻关研究,所有小于7×1011的自然数,都符合这个规律。 在数学文献里,冰雹...
【多选题】下列关于有机物的特性的叙述正确的是？
A.
容易燃烧，熔点、沸点较低
B.
一般难溶于水而易溶于有机溶剂
C.
反应速度慢，反应复杂，常伴有副反应
D.
结构复杂，种类繁多
【单选题】After seeing the movie,______.
A.
the book was read by him
B.
he wanted to read the book
C.
the book made him want to read it
D.
the reading of the book interested him
【单选题】听力原文：W: Hey, you. Can't you be a bit faster? You make the whole group wait for you. M: How can you blame it on me? I'm having trouble in operating this kind of machine. It is designed for.you right ha...
A.
Using the left hand.
B.
Operating machines.
C.
Designing machines.
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