My parents are always telling me to leave everything in the study_________.

A．as they were

B．as it was

C．like they were

D．like it was

关于痛经下列哪项不正确

A．常表现为痉挛性疼痛

B．多发生在初潮后不久的未婚妇女

C．主要原因是与子宫内膜合成和释放前列腺素减少有关

D．多发生在经期第1～2天或月经来潮前数小时

E．严重时有面色苍白，全身乏力，出冷汗等症状