问题
判断题
煤尘粒度越小，爆炸性越强。
答案
参考答案：错
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煤尘粒度越小，爆炸性越强。
参考答案：错
| 从方框中选择适当的单词完成短文。 | |
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| Today is Sunday. It's 1 and kind of hot in the 2 I go out 3 some of my friends. We go to the 4 . There are 5 people in the park. They are 6 shorts and 7 .We have a good 8_ there. In the afternoon, it's rainy. I stay at home and 9 a book. I usually read a book when it's 10 . |