《钢铁是怎样炼成的》是作者在()情况下创作出来的。
参考答案:全身瘫痪,双目失明
---This physics problem is too difficult. Can you show me __________, Wang Lin?
--- Sure.
A.what to work it out
B.what to work out it
C.how to work it out
D.how to work out it
()为半合成的抗结核病药物。
A.利福喷汀
B.齐多夫定
C.特比萘芬
D.磺胺甲唑
E.替硝唑