2. 职称英语
  3. With age, the mineral content of human bones decreases, ______them more fragile.

With age, the mineral content of human bones decreases, ______them more fragile.

游客2023-11-03  56
问题 With age, the mineral content of human bones decreases, ______them more fragile.
选项 A、make
B、and to make
C、thereby making
D、which it makes
答案 C
解析 非谓语动词用法题。本句中的谓语动词是decreases，其他动词只能以非谓语形式出现或出现在从句中；现在分词making及之后的部分作状语，表示结果，因此选[C]。[D]中若去掉it也是正确的。
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