由于采煤机的牵引部多采用开式系统，因此需要设置补油泵对其进行补油。（）
参考答案：错
英汉互译。
1. 今天，我有许多事情要做。
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2. 她经常自愿打扫教室。
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3. My dad is busy fixing up his car.
4. I want to know how their strategies work out.
5..He gave away his food to those classmates who didn't have breakfast.
色彩引起的视觉疲劳可以通过调换另一种色彩来（）
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t.