若多项式2a2的值是5，则6a2+5的值是（ ） A．10 B．15 C．20 D．25

皮肤猪囊虫病确诊靠（）。

A.CT

B.B超

C.活检

D.血常规

E.MRI

The older she grows,       the traditional food in her own country. [ ]

A.the more she becomes interested

B.the more interested she becomes

C.the more interested she becomes in

D.the interested she becomes more in

防火分隔水幕喷水强度为（）。

A、0.5L/min•m

B、1.0L/min•m

C、1.5L/min•m

D、2.0L/min•m

长江流域母系氏族公社的文化遗址在（）

A、浙江河姆渡

B、江苏三山

C、上海沐公江

D、江苏南京

党的民族政策的源头是什么？