关于子宫颈癌，下述错误的是

A．宫颈刮片巴氏Ⅲ级时，应进一步检查
B．Ⅱa期，三合诊无明显宫旁组织浸润
C．Ⅱb期，通常行放疗
D．原位癌在临床分期上属于0期
E．宫颈刮片细胞学检查可区别原位癌与浸润癌

Gasoline tanks should be filled（）.

A.to the top to expel all vapors from the tanks

B.to the top so the operator is certain how much fuel he has aboard

C.with only sufficient fuel for the planned trip so excess gasoline is not carried

D.to near the top with some space allowed for gasoline expansion