流行性脑脊髓膜炎的病原菌属于
A.革兰阴性弧菌B.革兰阴性杆菌C.抗酸杆菌D.革兰阴性球菌E.革兰阳性球菌
参考答案:D
Do you lunch at school? [ ]
A. have
B. has
C. /
已知肛门栓模具的装量为2g,鞣酸的置换价为1.6,现有鞣酸2g,欲制成10枚栓剂,需可可豆脂
A.8.5gB.18.75gC.21.25gD.18.25gE.21.75g