梳顺纠结成团的头发可用( )
A．20%乙醇B．30%乙醇C．50%乙醇D．70%乙醇E．95%乙醇
参考答案：B
已知⊙O1、⊙O2的半径不相等，⊙O1的半径长为3，若⊙O2上的点A满足AO1＝3，则⊙O1与⊙O2的位置关系是（ ）
A．相交或相切
B．相切或相离
C．相交或内含
D．相切或内含
根据句意及所给中文提示或英文解释，写出句中所缺单词。
1. My neighbours are very _____ (友好的) to us.
2. Do you _____ (同意) with what I say?
3. We had a very cold _____ (冬季) last year.
4. Are you _____ (有空的) this evening?
5. I can't _____ (买得起) to go to the 2010 World Cup.
6. The tourists had no c_____ but to wait for the next bus.
7. Tom is a _____ (a good sense of humour) boy, so everyone likes him.
