四六级考试

【单选题】
A、It is more exciting than space travel.
B．It is much cheaper than space travel.
C．It is much safer than space travel.
D．It is less time-consuming than space travel.

网考网参考答案：B
网考网解析：
[听力原文] What is one of the reasons for the speaker to switch his interest to underwater exploration 细节重现。作者兴趣转变的原因之一就是经济方面的，水下探险比太空旅行可是要便宜得多。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>