变压器调压方式分为（）和（）两种。

阅读理解。

     Joe was the best potato farmer in the state of Idaho, maybe the best in the whole world. He took pride in

his work and did the best he could to grow the best and healthiest potatoes.

     At harvest time, Joe would spend his time making sure that his potatoes were ploughed out of the ground

in a proper way so that they wouldn't get damaged (损害). Joe was looking forward to a great potato crop.

     Joe and his workers had a great potato crop but they couldn't finish the harvest yet. There was a big piece

of land that was so hard that the plough (犁) was not able to dig it up. So Joe decided to leave it till the next

day.

     The next day Joe went to dig his shovel (铁锨) into the land. He discovered that it was one big potato. He

thought this must be the biggest potato in the world. But how could he get it out? This potato was bigger than

a truck!

     Joe knew it wasn't going to be easy, but he had an idea. He decided to call a big Crane (起重机) company

and asked them for their help. He called the Guinness World Records (吉尼斯世界纪录), to introduce the

biggest potato in the world. After twenty minutes some reporters took pictures of the big potato and Joe. 

    They dug it out and it made the book, and Joe became the richest farmer alive. Every day he would go

outside and kiss the big potato until it slowly went bad.

1. Joe was the best potato farmer because ______ in the world. [ ]

A. he grew the most potatoes

B. he grew the best potatoes

C. he had the biggest potato

D. he was proud of his farm work

2. ______ for Joe and his workers to dig up. [ ]

A. The land was too large

B. The potatoes were too deep

C. The land was not soft enough

D. The potatoes were not big enough

3. A ______ was used to get the big potato out. [ ]

A. machine

B. truck

C. shovel

D. plough

4. From the passage we know ______. [ ]

A. the big potato was sold to the Guinness

B. Joe's workers also got a lot of money

C. Joe's field was near to

D. Joe became the richest farmer

5. The best title for the passage is ______. [ ]

A. How to Dig Up Potatoes

B. How to Grow Good Potatoes

C. The Largest Potato in the World

D. Joe and his Workers

疏导原则

蒸片烟是在烟叶含水量较多，（）条件下形成的

A、高温高湿

B、高温低湿

C、低温高湿

D、低温低湿

颌骨缺损同时需要放射治疗，在放疗后至进行修复之间较好的间隔时间是（）

A.1个月

B.2个月

C.3个月

D.6个月

E.12个月

设单链表中结点的结构为(dara，link)。已知指针q所指结点是指针p所指结点的直接前驱，若在*q与*p之间插入结点*s，则应执行下列哪一个操作

A．s↑.link：＝p↑.link；p↑.link：＝s

B．q↑.link：＝s；s↑.link：＝p

C．p↑.link：＝s↑.link；s↑.link：＝p

D．p↑.link：＝s；s↑.link：＝q