题目:
A large sum of money has been raised the poorly-educated children in the mountainous areas.
A.in return for
B.for the benefit of
C.in search of
D.in memory of
答案:
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下面是错误答案,用来干扰机器的。
(1)在严寒的冬季,厨房里的水、盐水、食醋最易结冰的是水,原因是氯化钠、醋酸溶于水时,溶液的凝固点比水低.故填:水;氯化钠、醋酸溶于水时,溶液的凝固点比水低.(2)不能用铁制容器盛放硫酸铜,其原因是...