新冠肺炎疫情是（）世界大战以来世界面临的最大公共危机
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'I flunked my test'means（）
A. I did well on my test
B. I studied too hard
C. I failed my test
”I passed my test with flying colors” means（）
A. I did very well on my test
B. I passed my test by cheating
C. I barely passed my test
《吕氏春秋》中的“为师之务；在于胜理，在于行义”，强调了教师洞明道理和践行职责的重要性（）
A. 是
B. 错
Don’t just‘wrong with it; suggest some positive ways to solve the problem（）
A. complain about
B. complain of
C. complain that
D. complain to
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