芽接刀打磨时，应使刀刃斜面（）。
A、尽量窄
B、宽窄适度
C、尽量宽
D、可宽可窄
参考答案：B
—Excuse me. Do you know _________?
— Last Sunday.
A．where he would like to visit
B．when he was back home
C．how he came here
D．why did he come to the zoo
下列哪一项不符合结核性脑膜炎的脑脊液检查结果（）
A.IgA增加
B.MBP增高
C.葡萄糖减低
D.氯化物减少
E.溶菌酶升高
