慢性根尖肉芽肿具特征的临床特点是
A．叩痛异样感B．扪诊略不适C．无明显松动D．电活力测验无反应E．X线透射区界限清楚
参考答案：E
若用单链表来表示队列，则应该选用( )。
A．带尾指针的非循环链表
B．带尾指针的循环链表
C．带头指针的非循环链表
D．带头指针的循环链表
根据句意，用括号内所给单词的适当形式填空。
1. — Would you like to play computer games with us?
—Yes, with (please).
2. — Could you (fetch) me some hot water, dear?
—Sure, Mom.
3. Let's raise money to help the (disable).
4. There are many helpful social (社会的) (organize) in the world.
5. She is blind. That is to say, she is (able) to see.
