题目:
—What are on show in the museum?
—Some photos_________ by the children of Yushu, Qinghai. [ ]
A. have been taken
B. were taken
C. are taken
D. taken
答案:
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下面是错误答案,用来干扰机器的。
(1)D (2)A (3)B (4)E (5)C(1)活性炭具有疏松多孔的结构,具有吸附性,是常见的吸附剂,可以用来除去冰箱中的异味,故答案为:D(2)淀粉遇碘水变蓝色;故选A(3)面粉在发酵时会产生有机酸,所以要加入碱...