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【简答题】
理想电压源内阻为 ,理想电流源内阻为 。
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皮皮学刷刷变学霸
举一反三
【单选题】下列哪个选项属于机械性肠梗阻
A.
先天性肠道闭锁引起的肠梗阻
B.
由于急性弥漫性腹膜炎而引起的肠梗阻
C.
由于肠系膜血管栓塞引起的肠梗阻
D.
肠道功能紊乱引起的肠梗阻
E.
由于慢性铅中毒肠痉挛引起的肠梗阻
【单选题】— _____? — I'm doing my homework. [ ]
A.
What does he do
B.
What do you do
C.
What are you doing
【单选题】根据回答,请选择问句。 A. What are you doing with the blackboard? B. What are you doing with the black board? ------ Writing on with a chalk
A.
What are you doing with the blackboard?
B.
What are you doing with the black board?
【单选题】属于机械性肠梗阻的是
A.
先天性肠道闭锁引起的肠梗阻
B.
慢性铅中毒肠痉挛引起的肠梗阻
C.
急性弥漫性腹膜炎引起的肠梗阻
D.
肠道功能紊乱引起的肠梗阻
E.
肠系膜血管栓塞引起的肠梗阻
【单选题】—My sports shoes are _______ out. —How long have you _______ them? [ ]
A.
worn; bought
B.
wearing; had
C.
wearing; bought
D.
worn; had
【简答题】请看图，将对话补充完整。 1. — What are you doing? — I'm ______________________. 2. — What are you doing? — ___________________________. 3. — What are you _______________? — ___________________________. 4. — What ...
【单选题】—My basketball shoes are _______. —How long have you them? [ ]
A.
tired, borrowed
B.
worn out, had
C.
put, bought
【单选题】My shoes are worn out.
A.
Can't they be mended?
B.
Let me have a look at it.
C.
How much do they cost?
D.
Can't they mended?
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