学校有3幢教学楼，每幢5层，每层12间教室，学校一共有多少间教室？

Lily is        her pen, but she can’t        it.

A．finding; look for

B．looking for; find

C．look for; finding

D．looking for; finding.

（）可将高电压变为低电压。

“Facial transplants are no longer science fiction imagination ,”a surgeon has said,____that they are ___possible but  technically complex..

A．adding ,theoretically

B．considering ,desperately

C．noted ,ethically

D．stressed , completely

腹围（AC）测量的公式是（D1：胎腹前后径；D2：胎腹横径）（）

A.AC＝D1+D2

B.AC＝2π/（D1+D2）

C.AC＝（D1+D2）/2π

D.AC=π（D1+D2）/2

E.AC=（D1+D2）/2

“刚肠疾恶，遇事便发”的诗人是（）