中国精神分裂症诊断标准（CCMD-3）中，病程标准为：（）

A.3个月

B.6个月

C.1个月

D.4个月

E.12个月

An inflatable liferaft is hand-launched by（）.

A.pulling a cord

B.cutting the wire restraining bands

C.removing the rubber packing strip

D.throwing the entire container overboard