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噎食又称急性食道堵塞,是指食物堵塞____或卡在____的第一狭窄处,甚至误入____,引起呼吸窒息。
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【单选题】Conjunctions and Transitions Exercise This is a multiple-choice exercise on using conjunctions and transitions to express cause and effect. Complete the sentence with the best conjunction or transitio...
A.
therefore
B.
since
C.
so
D.
consequently
【简答题】根据语境,补全单词。 1. The room is so dirty. Let's give it a t_____ cleaning. 2. A number of nations have already been in armed c_____ over water, and reduced rainfall in the west of the US has resulted in hug...
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