2. 外语
  3. A mass of sugar that weighs 6 kg in California will weigh about 6 kg in Canada or Germany, an evidence______that the force of gr

A mass of sugar that weighs 6 kg in California will weigh about 6 kg in Canada or Germany, an evidence______that the force of gr

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问题 A mass of sugar that weighs 6 kg in California will weigh about 6 kg in Canada or Germany, an evidence______that the force of gravitation in each place is practically the same.
选项 A、to show
B、having shown
C、showing
D、shown
答案C
解析 此题测试的是分词作定语的用法。showing…相当于定语从句which shows…，show与evidence是主动关系，所以要用现在分词。题句讲的是客观事实，因此B项中的分词完成式是多此一举的。题句意："一堆在加利福尼亚重六公斤的糖，在德国或加拿大也大约重六公斤。这一证据表明，每个地方的地心引力几乎是一样的。"
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