问题
填空题
（）是由不同的立档单位形成的，按照一定特征保中起来的档案的混合体。
答案
参考答案：档案汇集
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（）是由不同的立档单位形成的，按照一定特征保中起来的档案的混合体。
参考答案：档案汇集
| 用方框内的单词完成下面的句子（有多余选项）。 | |
2. How__________ do you go to the movies? 3. It__________rains here. It's usually sunny and warm. 4. Some of my friends exercise every day and hardly ever eat junk food, but most of them eat junk food __________. 5. I can't swim. So I__________go to the beach to swim. Sometimes I go there with my friends to run. |