四六级考试

试题来源：专业四级-186
【单选题】 _________ is often the case with a new idea, much preliminary activity and optimistic discussion produced no concrete proposals.
A．That
B．It
C．this
D．As

参考答案：D
网考网解析：
[汉译] 一个新想法往往是这样，过多初级行为及乐观的讨论不会产生什么具体的建议。... 查看试题解析出处>>