【名词&注释】
选择题(multiple choice)、时间短(short time)、交通堵塞(traffic jam)、不断学习(unceasing study)、持续时间长(long duration)
[多选题]第一心音的特点有 （ ）
A. 音调高，持续时间长(long duration)
B. 音调低，持续时间短
C. 音调高，持续时间短
D. 音调低，持续时间长(long duration)
E. 在心尖处听得最清楚
查看答案&解析
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举一反三：
[单选题]请将正确答案填在第34处。
A. However
B. Besides
C. Otherwise
D. Again
[单选题]肺气胂叩诊音呈( )
A. 鼓音
B. 浊鼓音
C. 浊音
D. 清音
E. 过清音
[单选题]Henry: Well, I arranged with Bob and Chris to meet me here for a drink, but __________Tom: They are probably held up by the traffic.
A. I wonder what it is.
B. they came late.
C. neither of them has turned up.
D. you can never tell.
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