在5%~10%葡萄糖液中性质不稳定,溶解后即部分分解的青霉素类药物是()
A.氨苄西林钠
B.克拉维酸
C.阿莫西林
D.苯唑西林钠
E.阿莫西林钠
参考答案:A
用括号中所给单词的适当形式填空。
1. ________ (do) your mother have a computer?
2. That ________ (sound) interesting.
3. Our school________ (have) a baseball team.
4. He has many balls in his room. Can you see ________ (they)?
5. My mother ________ (watch) sports on TV.
6. Let ________ (we) play volleyball.
7. You can join ________ (we) sports center.
8. We have many sports ________ (club).
下列哪一种组织或界面回声最强:()
A.肾中央区(肾窦区)
B.主动脉壁
C.脏层胸膜--肺
D.腹直肌
E.横膈(包括膈胸膜)