大中型、小型企业药品抽样检验的批数,分别是不应少于进货批次的
A.1.5%,1%B.1%,0.5%C.0.5%,1%D.1%,1.5%E.0.5%,1.5%
参考答案:A
There ____________ two lights and a blackboard in our classroom.[ ]
A. are
B. is
C. isn't
外鼻的静脉经何血管与海绵窦相通()
A.内眦静脉
B.眼上、下静脉
C.面静脉
D.颈内静脉
E.额静脉