每组接地线都要编号并放在固定地点。
参考答案:错
根据首字母和句意写出单词。
1. Our flat has two b_______.
2. December is the t_______ month of the year.
3. Justin told me a story of three r_______.
4. Please give me a c_______ answer.
5. Be careful when you go a_______ the street.
不符合磺胺类药物特点的叙述是()
A.进入体内的磺胺多在肝中乙酰化
B.抗菌谱较广,包括G菌、G菌等
C.可用于衣原体感染
D.可用于立克次体感染
E.抑制细菌二氢叶酸合成