Scientists have decided to declare ____ war on AIDS in order to make ____ breakt

题干

Scientists have decided to declare ____ war on AIDS in order to make ____ breakthrough in treating it.

A．a, a

B．/, a

C．a, the

D．/ , the

上一题下一题 0.64难度单项选择更新时间:2013-11-25 06:59:36

小学学科试题库

初中学科试题库

高中学科试题库