题干

Why do some governments spend billions of dollars on military expansion ________ the people of these countries are still suffering from starvation and poverty?
A.whetherB.thoughC.unlessD.when
上一题 下一题 0.64难度 单项选择 更新时间:2016-01-12 06:40:26

答案(点此获取答案解析)