在接地体径向地面上,水平距离为()m处的两点间的电压,称为跨步电压。
A.0.6
B.0.8
C.1.0
参考答案:B
用所给词的适当形式填空。
1. Deng Lijun's music has great _______ (lyric).
2. What about _______ (listen) to soft music?
3. When he was young, Tony _______ (prefer) pop music.
4. Jay Chou's music _______ (sound) wonderful.
5. The Lion's songs are very _______(interest).
6. Later she become a great _______ (music).
7. My mother likes the singer who _______ ( play) the piano well.
8. They prefer_______ (skate) to swimming.
在注射剂中既可防腐又有局部止痛作用的药用辅料是()
A.山梨酸
B.苯甲醇
C.乙醇
D.对羟基苯甲酸酯类
E.苯甲酸与苯甲酸钠