经常采用压料方式放料的反应器是()。
A、高压釜
B、不锈钢釜
C、铅釜
D、搪瓷釜
参考答案:A
把句子的序号写在相应的图片下。
( ) ( ) ( )
1. The picture is above the lamp. The lamp is below the picture.
2. The girl is beside the boy. The boy is beside the girl.
3. Where is Danny? He's in the library. He's reading a book.
在脑脊液中浓度较高的药物没有()
A.红霉素
B.异烟肼
C.氯霉素
D.磺胺药
E.甲硝唑