通过影响叶酸代谢来发挥抗菌作用的是（） A.氨基糖苷类抗生素 B.磺胺类抗生素 C.

选择方框内的单词完成句子，只需填选项号。

A. hundred  B. farthest  C. success  D. the same as   E. took part in   F. because of

小题1:Tony ______________ the singing competition and got first prize in his group.
小题2:My friend is ___________ me. We are both quiet.
小题3:Harbin is in northern China, and it’s the ____________ of the three cities.
小题4:---How far is the aquarium from here? –It’s only about five _________ meters away.
小题5:Last week’s talent show was a great _____________.
小题6:He stopped playing soccer _____________ his sore back.