《松材线虫病普查抽样检测办法》规定，本办法适用于我国松材线虫

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问题填空题

《松材线虫病普查抽样检测办法》规定，本办法适用于我国松材线虫病（）内的疫情普查。

答案

参考答案：未发生区及新发生区

完形填空

66	Ann works hard at English. She never wastes time.
67	Bill is always afraid of failing exams. He needs more confidence.
68	David has good study habits. He thinks the beginning is very important.
69	Linda is 70 years old, but she still likes learning something.
70	Tom wants to be a professional basketball player, but he can’t play it very well.

A. Practice makes perfect.	B. Every minute counts.
C. Failure is the mother of success.	D. A good beginning is half done.
E. It is never too old to learn.

单项选择题

“锅”和“炉”是通过（）联系在一起的，使烟气的热量传向受热介质。

A、燃烧过程

B、传热过程

C、蒸发过程

D、汽化过程