荀子礼法起源观的前提是()。
A.隆礼重法
B.化性起伪
C.明分使群
D.定分止争
参考答案:B, C
—Must we keep the windows open all the time?
—No, we ________. [ ]
A. don't have to
B. mustn't
C. must not
()被誉为人体健康卫士细胞。