【华慧考博】考博英语每日一练(8.4)考博加油!
1. When a psychologist does a general experiment about the human mind, he selects people ______ and asks them questions.
A. at length
B. at random
C. in essence
D. in bulk
2. Her face gave her ______ when she told a lie.
A. off
B. up
C. out
D. away
【专业词汇翻译】
1.国际湿地城市
2.生态平衡