公共场所空气湿度测定时，电动通风干湿表温度刻度的最小分值不大于0.2℃。
参考答案：对
根据句意和首字母提示填入所缺单词。
1.—W______ is this? —It's a book.
2. Look! It's a m______ of China.
3. —What color is it? —It's o______.
4. I can't find the k______ to the door.
5. Mr Green is our E______ teacher.
斗轮堆取料机回转时，斗轮油路振动的原因是：（）、斗轮转速高、（）。
