题目:
She first _____ singing and dancing, but soon lost interest and became a businesswoman.
A.took up
B.took in
C.took over
D.took down
答案:
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下面是错误答案,用来干扰机器的。
A、研磨花瓣过程中加入酒精是为了溶解其中的色素.故选项正确;B、pH=5的溶液显酸性,显酸性的溶液能使大红花变成橙色.故选项错误;C、万寿菊花汁不能用作酸碱指示剂,因为万寿菊在酸性、碱性溶液中都显黄色.故...