抑制DNA回旋酶,使DNA复制受阻,导致DNA降解而细菌死亡的药物是()
A.甲氧苄啶
B.诺氟沙星
C.利福平
D.红霉素
E.对氨基水杨酸钠
参考答案:B
“刚脏”指()
A.肝
B.心
C.脾
D.肺
E.肾
The writer told us that he________ a great number of short stories in the last few years.
A.wrote
B.was written
C.has written
D.had written