单选题：The passage suggests that the effects of volcanic carbon dio

题目内容：

The passage suggests that the effects of volcanic carbon dioxide on the environment differ from those of sulfurous gases in that

参考答案：

答案解析：

The author of the passage suggests that which of the followi

The author of the passage suggests that which of the following is true of the pr

分类：GRE 题型：单选题

分类：GRE 题型：单选题

一个干涸的鱼塘容积有180立方，用抽水机往里面注水，如果每天能注入80立方，晚上渗入地面60立方，那么注满这个鱼塘需要（　　）天?

分类：GRE 题型：单选题

分类：GRE 题型：单选题

高新技术企业的工资制度需要改革。应该允许企业在积累增长大于消费增长、劳动生产率增长大于工资总额增长的前提下，自主确定职工工资标准和企业内部分配办法。国家可以通过

分类：GRE 题型：单选题