向沼气池投料时,不用将各种原料进行搭配,这样沼气池才能产气.

题型:判断题

问题:

向沼气池投料时,不用将各种原料进行搭配,这样沼气池才能产气.

考点:沼气生产工沼气生产工题库
题型:判断题
用所给短语的适当形式填空。
take over, consist of, differ from, get…across, accuse…of, fall for,
play a leading role in, make way for, pass…on, put forward
1. A medical team ______two doctors and three nurses are setting out for Africa.
2. _____the book ______to me when you have finished with it.
3. The neighbours may _____you ______ playing your radio too loudly at night.
4. The plan ______ for discussion at the next meeting.
5. One of the old building is being pulled down to ______a new park.
6. After he graduated from college, he _____ his father's business.
7. I spoke that slowly but I did not ______my meaning _____.
8. I am surprised that you ______ that trick.
9. He ______the last film. We are all impressed by his wonderful performance.
10. Old English _______the English we speak now.
题型:判断题

急性腐蚀性胃炎应采用

A.洗胃
B.手术切除
C.饮蛋清及稀释牛奶
D.多潘立酮

题型:判断题

其他至少有一层是热带木的针叶木

题型:判断题

天然气是当今世界上最重要的气体化石燃料,其主要成份是______.第28届国际地质大会提供的资料显示,深海底有大量的“可燃冰”(固态天然气水合物),可满足人类1000年的能源需要,但现在的开采技术尚未成熟,原因是“可燃冰”的存在环境是______温______压(填“高”或“低”).

题型:判断题

在变频调速中,若在额定频率以下调频时,当频率下调时,电压也要();若在额定频率以上调时,当频率上调时,电压()。

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