肌肉活检最常用的取材部位有
A．肱二头肌
B．股四头肌
C．腓肠肌
D．背阔肌
E．三角肌
参考答案：A,B,C,E
急性原发性血小板减少性紫癜的主要死因是（）
A.感染
B.电解质紊乱
C.缺血性休克
D.颅内出血
E.心力衰竭
Wallace and Darwin didn't agree _____ different forms of life had begun [ ]
A. with the person whose
B. on the way in which
C. on the way which
D. to the plan to which
on whose