四六级考试

【单选题】
A、Between midnight and 6 am.

B、In the evenings.
C．After 6 pm.
D．Before 6 pm.

网考网参考答案：D
网考网解析：
[听力原文] When are the phone calls more expensive document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>