离心泵的主要工作部件是（）_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题填空题

离心泵的主要工作部件是（）

答案

参考答案：叶轮和机壳

填空题

从框中给出的6个词组中选出其中的5个填入下列句子中,使句子的结构和意思完整。

make efforts in conclusion bring up
be caught in in terms of in all

1.He _________ the rain and is wet through and through.
2. , he expressed his wish to come to Paris again.
3.She was __________ by her grandmother before she went to college in New York.
4.Every one of you is required to ____________ to make a contribution to your country.
5._________ the local custom, a man can marry several women and a woman can marry several men.

问答题简答题

精确农业的表现形式 PA体现了？