Is she playing the piano? [ ]
A. Yes, she is.
B. No, she isn't.
答案：A
A pelican hook（）.
A.Can be released while under strain
B.Is used for boat falls
C.Is used for extra heavy loads
D.Is used for light loads only
阿托品具有
A．中枢肌肉松弛作用B．中枢兴奋作用C．中枢抑制作用D．神经节阻断作用E．眼内压降低作用
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