问题
填空题
离心泵按泵壳结合面位置形式分类可分()和()。
答案
参考答案:水平中开式、垂直分段式
离心泵按泵壳结合面位置形式分类可分()和()。
参考答案:水平中开式、垂直分段式
补全对话,根据对话内容,将方框内符合对话情景的句子写在对话的空白处,使对话恢复完整.其中有两项是多余的。 | |
Eliza: __1__ Kim: I like winter better, Eliza. Fliza: __2 Kim: Because I like to go skiing on the mountain. Eliza: _3 I like winter better, too. I think it's the most beautiful time of the year. When it snows, the land is all white. Kim: __4 Fliza: Yes, but that's not why I like winter best. Kim: Then why? Eliza: __5
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