口腔检查的内容不包括()。
A.口腔外部检查
B.口腔内检查
C.X线检查
D.制取模型检查
E.常规检查
参考答案:E
We hope that as many as possible _______ join us for the picnic tomorrow.
A.need
B.must
C.should
D.can
观察玻片标本时,若视野的上方较暗下方较亮,应调节()
A.反光镜
B.光圈
C.物镜
D.目镜