2026-10-30点击次数：117
【华慧考博】考博英语每日一练（10.30）考博加油！
1. I phoned him this morning, but when I said who I was, he_______.
A. rang up
B. hung up
C. shut down
D. shut up
2. A friendship may be ______ , casual, situational or deep and lasting.
A. identical
B. original
C. superficial
D. critical
【专业词汇翻译】
1.空气质量
2.环保产业
