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【单选题】
通过 2兴奋岡肾上腺素能受体缓解支气管痉药物是A.
氨茶碱
B.
麻黄碱
C.
阿托品
D.
肾上腺素
E.
胺醇
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反馈参考答案：
举一反三
【判断题】Sociologists and psychologists point out that Americans begin losing their ideas of liberty and individualism in the home.()
A.
正确
B.
错误
【单选题】The author ________.
A.
began to think of becoming a writer at Harvard
B.
had always been successful in his writing career
C.
went to Harvard to learn to write plays
D.
worked as a newspaper man before becoming a writer
【单选题】The reason why the writer's car began to move from side to side is ______.
A.
there was something wrong with his car
B.
he ate apples as he drove
C.
an earthquake began to happen
D.
he drove too fast
【单选题】The author ______.
A.
began to think of becoming a writer at Harvard
B.
had always been successful in his writing career
C.
want to Harvard to learn to write plays
D.
worked as a newspaper man before becoming a writer
【单选题】关于卵巢浆液性囊腺癌的声像图描述，不正确的是
A.
多为单侧，囊壁薄而光滑
B.
囊内有弥漫性乳头状回声
C.
常伴出血坏死，囊液较混浊
D.
实性区常可见到丰富的血流信号
E.
血流频谱呈低阻型，RI≤0.4
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