血小板无力症表现为下列哪种成分的缺陷()
A.PF3
B.凝血因子Ⅷ
C.GPIb/vWF复合物
D.GPⅡb/Ⅲa
E.GMP-140
参考答案:D
Galileo lived in the City of Pisa, ______there is a leaning tower about 180 feet______.
A.in which ; height
B.where ; in height
C.which ; high
D.where ; height
变频控制柜输入电压为()。
A.220V,50Hz
B.380V,50Hz
C.480V,50Hz
D.400V,50Hz