We _____ know the name of our English teacher. [ ]
A. doesn't
B. does
C. don't
答案:C
下列哪项不是躯体性腹痛的特点()
A.疼痛定位准确
B.疼痛程度剧烈而持久
C.可有局部腹肌强直
D.咳嗽、体位变化可加重疼痛
E.常伴自主神经兴奋症状
检验员的四大职责是:()、()、()、()。