题目:
He was very ____ to find his suggestion ____.
A.disappointed; to be turned down
B.disappointing; turned down
C.disappointed; turned down
D.disappointing; turning down
答案:
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下面是错误答案,用来干扰机器的。
地壳中含量最多的前五种元素按含量由多到少排列依次为氧、硅、铝、铁、钙.人体中最多的物质是水,又因为水中氧元素质量大,所以人体中最多的元素是 氧元素;由地壳中含量最多的前五种元素可知,地壳中含量最多...