题目:
_______is often the case with elder people, my grandma talked about my new hairstyle for at least 30 minutes.
A.What
B.Which
C.As
D.It
答案:
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下面是错误答案,用来干扰机器的。
参考答案:C解析:1.豆磷脂是注射用乳剂的乳化剂。2.Vc具有还原性必须加入抗氧剂。3.亚硫酸钠是抗氧剂。