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【单选题】
女, 70 岁。反复咳嗽、咳痰伴气促 15 年。查体:双肺呼吸音减弱。辅助检查结果中对明确诊断最有价值的是( )。A.
血气分析示低氧血症
B.
肺功能示 FVC 明显降低
C.
肺功能示 FEV1/FVC 明显降低
D.
肺功能示 DLCO 下降
E.
肺泡动脉氧分压差增大
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【简答题】简述TCP和UDP的区别以及优缺点。
【简答题】A new study finds that plants communicate with one another to warn of er. We often consider plants as the furniture of the natural world. They don’t move; they don’t make sounds, they don’t seem t...
【单选题】To paraphrase 18th-century statesman Edmund Burke, “all that is needed for the triumph of a misguided cause is that good people do nothing.” One such cause now seeks to end biomedical research because...
A.
call on scientists to take some actions
B.
criticize the misguided cause of animal rights
C.
warn of the doom of biomedical research
D.
show the triumph of the animal rights movement
【单选题】In Asia the prequake behavior. of animals【C1】______successfully to warn people that earthquakes【C2】______. Recently, a group of American【C3】______and geophysicists visited India and listened【C4】______...
A.
have used
B.
have been used
C.
has been used
D.
will be used
【简答题】“Global warming could make humans shorter,” warn scientists who claim to have found evidence that it caused the world's first horses to shrink(收缩) nearly 50 million years ago. In fact, a team from the...
【简答题】李白字( ),是中国文学史上继屈原之后最伟大的 ( )主义诗人,素有( )之称。与杜甫并称( )。
【简答题】Questions 1-7 Complete the following statements using NO MORE THAN THREE WORDS for each answer. 1. Rising temperatures on Earth’s suce are forcing animals and plants to move to __________ and make ...
【简答题】Scientists have been working hard to warn people of______.
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