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【单选题】
患者女,62岁。有慢性心力衰竭病史,患者自述夜间呼吸困难。关于夜间阵发性呼吸困难发坐机制的描述错误的是A.
膈肌上抬
B.
小支气管收缩
C.
肺活量减少
D.
迷走神经张力增高
E.
呼吸中枢敏感性增加
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【简答题】用等效化简法分别求图6所示各电路中的电压U
【简答题】用等效变换求如图 (a) 所示电路中的电压 U 。
【单选题】I'm used to ________ him emails instead of ________ him letters. [ ]
A.
send; write
B.
send; writing
C.
sending; writing
D.
sending; were
【简答题】求图示电路中的电压U。
【单选题】She couldn’t decide whether to send him to hospital ________.
A.
or not to send
B.
or not
C.
or not to
D.
to or not
【简答题】求上图所示电路中的电流I和电压U。
【单选题】—What about _____ him a birthday card? —No, let's _____ him a computer game. [ ]
A.
send, give
B.
sending, give
C.
send, giving
D.
sends, give
【单选题】________ a difficult situation, so you should send a message to him and give some advice to him .
A.
As he is in
B.
He is in
C.
Being in
D.
He being in
【简答题】It would be better for you (send)______ him an e-mail than to call him directly.
【单选题】________ a difficult situation, so you should send him a message and give him some advice.
A.
As he is in
B.
He is in
C.
Being in
D.
He being in
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