100mL容量瓶上的标记Ex表示( )。
A.溶液不能超过刻度线
B.溶液可以超过刻度线
C.量入式
D.量出式
参考答案:D
Everybody said it was an ideal marriage; no one had ever known _____ couple.[ ]
A. the happier
B. a happier
C. a happy
D. the happiest
主虚寒证的舌色()
A.淡白舌
B.淡红舌
C.绛舌
D.红舌
E.紫舌