癃的含义是指（）
A.排尿末尿痛
B.小便点滴难出
C.尿线细、射程短
D.排尿时 * * 疼痛
E.小腹胀满不适
参考答案：B
Can you make sure _____________ the gold ring?
A．where Alice had put
B．where had Alice put
C．where Alice has put
D．where has Alice put
一个产品的生命周期传统上可分为______个阶段。
A．三
D．四
C．五
D．六
