女性，27岁。G1P0，37周妊娠，急性阑尾炎宜采取（）。

A.尽量避免手术治疗

B.应及早手术治疗

C.手术时一般应放置腹腔引流

D.如已临产而症状体征轻微亦应手术治疗

E.应用镇静剂及黄体酮等安胎措施

So necessary _____ it to learn about their customs that I will attend a special lecture next  week.

A．I have found

B．I feel

C．have I found

D．will I feel