中齿锉刀的加工精度在()mm范围。
A.0.01~0.05
B.0.05~0.2
C.0.2~0.5
D.0.005~0.01
参考答案:B
Do you still remember the rider and his new bike we saw in the street last week?
A.which
B.who
C.that
D.whom
衣原体感染应首选:
A.氯霉素
B.庆大霉素
C.克林霉素
D.阿莫西林
E.多西环素