—How many     teachers are there in your school?

—      them     over two hundred.



A．woman; The number of; is

B．women; The number of; is



C．woman; A number of; is

D．women; A number of; are

英国发动鸦片战争的原因是（）

A.反对中国禁烟

B.开展同中国的贸易

C.同中国建立外交关系

D.希望对外开辟商品市场和掠夺原料产地