充气轮胎按断面形状分为（）。
A、普通轮胎
B、标准断面轮胎
C、宽基轮胎
D、超宽基轮胎
参考答案：B, C, D
根据句意用括号内所给单词的适当形式填空。
1. I'm a singer and _____ (I) name's Dale.
2. Is _____ (she) book new?
3. It's nice _____ (meet) you.
4. His _____ (one) name is Jones.
5. Six and three _____ (be) nine.
除病因治疗外，应立即给予
A．补钾
B．补镁
C．补钠
D．补钙
E．补糖
