— When shall we leave for China?

— We won’t          we have visited all the places of interest here.

A．until

B．while

C．as

D．since

属于直接接触传播的医院感染有

A．母婴间疱疹病毒感染

B．沙眼衣原体感染

C．甲型肝炎

D．疟疾

E．铜绿假单胞菌感染