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【多选题】
有关“三凹征”的描述正确的是（）A.
气流过度通畅，短时间内进入肺内气体太多所致
B.
因呼气时间延长，又称之为呼气性呼吸困难
C.
吸气时呼吸肌收缩，造成肺内负压极度增高，引起胸骨上窝、锁骨上窝及肋间隙向内凹陷
D.
上呼吸道部分阻塞，气流不能顺利进入肺所引起
E.
常见于气管阻塞，如气管异物等
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【单选题】电路如图所示,已知 I 1 = 1A , I 2 = 4A , I 3 = -3A , I 4 = 8A ,电流 I 5 为 ( ) 。
A.
0A
B.
6A
C.
8A
D.
1 0A
【简答题】According to the passage parents and coaches should ________. A) help children to win every B) pay more attention to letting children enjoy sports C) enable children to understand the positive as...
【单选题】电路如图所示,已知 I 1 = 1A , I 2 = 4A , I 3 = -3A , I 4 = 2A ,电流 I 5 为 ( ) 。
A.
0A
B.
6A
C.
8A
D.
1 0A
【简答题】电路如图所示,已知I1=4A, I2=-2A, I3=1A, I4=-3A,则 I5= A.
【单选题】Once you _________ used to the weather here, you ________ to live here.
A.
get; will probably like
B.
will get; will probably like
C.
got; will probably like
D.
had got; had probably liked
【单选题】According to the passage, the Wi-Fi standard
A.
is based on the conventional wisdom.
B.
adopted an unlicensed part of the spectrum.
C.
relies on the standards by the giant corporations.
D.
is created solely by some geeks.
【简答题】The passage points out that to identity, with others is less important than to identify with ______.
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