问题
判断题
在一个较长时期中，不规则波动的随机因素往往可以相互抵消。 （ ）
答案
参考答案：对
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在一个较长时期中，不规则波动的随机因素往往可以相互抵消。 （ ）
参考答案：对
| 阅读短文，选词填空。每空一词，每词只使用一次。 | |
The holidays are the best 2______ of the year for most children. They can 3______ most of their time in swimming, camping and traveling with their parents. The most enjoyable place is the seaside. Some children are lucky enough to live near the 4______, but for those who live far from the sea, their parents will take them to the seaside for the holidays. Why do children 5______ spending their holidays at seaside? It's because they like the sand, the sun, the 6______ wind and the salt water there more than anything else. Of course, there are lots of new things to see, nice things to eat 7______ exciting things to do. |