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【单选题】
成人心肺复苏时,胸外按压的速率为( )。A.
80次/分
B.
100次/分
C.
80-100次/分
D.
100-120次/分
E.
至少100次/分
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反馈参考答案：
举一反三
【单选题】Chinese teachers hold the opinion that skills should be acquired as early as possible, while American educators think that creativity should be acquired early.
A.
T
B.
F
【单选题】如果完全竞争市场中的厂商在短期均衡产量上,AR小于SAC,但大于AVC,则厂商( )
A.
亏损，立即停产
B.
亏损，但继续生产
C.
亏损，但生产不生产都可以
D.
不亏损
【单选题】Why so many students graduate from high school with inadequate skills in reading and mathematics is a question that continues to _______ American educators.
A.
harass
B.
intimidate
C.
trouble
D.
oppress
【单选题】American educators fear that _____ creativity has been acquired early, it may never emerge.
A.
if
B.
only when
C.
if only
D.
unless
【判断题】Chinese teachers hold the opinion that skills should be acquired as early as possible, while American educators think that creativity should be acquired early.
A.
正确
B.
错误
【简答题】Complete the sentences, using the words or phrases in brackets. Make additions or changes where necessary. Model: American educators fear that unless creativity has been acquired early, it may ____; o...
【简答题】扎止血带应在伤口的近心端，并尽可能靠近 [填空(1)] 伤口。上肢为上臂上 。A. 1/3处
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