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【多选题】
肺栓塞的传统三联征是指A.
胸痛
B.
晕厥
C.
呼吸困难
D.
咯血
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举一反三
【简答题】基于因特网技术的商务活动称为( )商务。
【简答题】均匀化退火的目的在于消除有害的()，改善某些可以溶入固溶体的夹杂物的状态，从而使钢的组织与性能趋于均一。
【单选题】Over the long process of evolution, animals have developed their ______ senses, which makes it p
A.
14. Over the long process of evolution, animals have developed their ______ senses, which makes it possible for them to _____ their environments. A．specially; conquer
B.
unique; survive
C.
uniquely; survive
D.
special; exist
【简答题】疼痛是一种令人苦恼、（）的主观感觉，是人的健康受到（）的信号。
【单选题】Animal Intelligence Are Animals intelligent? If they are, which animals are the most intelligent? These are not easy questions to answer. In the first place, no one is quite sure what intelligence is....
B.
Chimpanzees can solve certain problems without any help.
C.
Some animals seem able to do this.
D.
In all these cases we may say that an animal is using intelligence.
E.
In other words, he did not simply use a tool, which itself is intelligent: he made a tool.
F.
They do not remember places and directions and then make decisions.
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