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【单选题】
易产生夜间阵发性呼吸困难的是A.
左心功能衰竭
B.
右心功能衰竭
C.
肺源性呼吸困难
D.
小气管痉挛
E.
癔病
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反馈参考答案：
举一反三
【单选题】并励直流电动机带恒转矩负载,当在电枢回路中串接电阻时,其( )。
A.
电动机电枢电流不变，转速下降
B.
电动机电枢电流不变，转速升高
C.
电动机电枢电流减小，转速下降
D.
电动机电枢电流减小，转速升高
【简答题】甲：あれは（ ）の傘ですか。乙：さんのです。
【单选题】Why does the person complain about his iron?
A.
Because the other one took it away without permission.
B.
Because his iron is not good.
C.
Because he cannot find his iron.
【简答题】Why does one person think Lisa shouldn't tell anyone about the test?
【简答题】分组交换的交换方式又包括两种: 和 。
【单选题】Why does Ms. Finley want to sell her house?
A.
It is too big for one person.
B.
She will move out of the state.
C.
She found a larger house for her family.
D.
She does not have time to take care of it.
【简答题】吞食鱼胆后一般会在多少小时内呈现中毒现象?
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