她不配做这项工作。 She is unequal to do the job. ()
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frivolous means being careful. ()
I cannot understand him behave so foolishly. ()
犬瘟热免疫后()天开始产生中和抗体。
A. 6天
B. 20天
C. 30天
D. 1天
A test is an official document that authoritatively determines the content and principles of teaching and learning. ()