Wang Ping was so angry          he heard his friend betrayed him          he tore the letter into two immediately.

A．that；when

B．that；that

C．when；what

D．when；that

女性，26岁，孕29周，出现无痛性无诱因 * * 出血5天，超声检查见胎盘覆盖于子宫颈内口。

检查时需注意

A．不需充盈膀胱

B．适度充盈膀胱

C．过度充盈膀胱

D．禁止使用TVS检查

E．在孕18周之前可诊断