发电机温度过高是由哪些原因引起的？

若log_m9＜log_n9＜0，那么m，n满足的条件是（　　）

A．m＞n＞1

B．n＞m＞1

C．0＜n＜m＜1

D．0＜m＜n＜1

Saturday, March 24th

We have arrived in the hot, wet city of Bangkok. This is our first trip to Thailand（泰国）. All the different smells make us want to try the food. We are going to eat something special for dinner tonight. The hotel we are staying in is cheap, and very clean. We plan to stay here for a few days, visit some places in the city, and then travel to Chiang Mai in the North.

Tuesday, March 27th

Bangkok is wonderful and surprising. The places are interesting. We visited the famous market which was on water, and saw a lot of fruits and vegetables. Everything is so colorful, and we have taken hundreds of photos already! Later today we will leave for Chiang Mai. We will take the train north, stay in Chiang Mai for two days, and then catch a bus to Chiang Rai.

Friday, March 30th

Our trip to Chiang Rai was long and boring. We visited a small village in the mountains. The village people here love the quiet life—no computers or phones. They are the kindest people I have ever met. They always smile and say“hello”. Kathy and I can only speak a few words of Thai, so smiling is the best way to show our kindness. I feel good here and hope to be able to come back next year.

小题1:The diaries above show the writer’s __________________ days in Thailand.

A．3

B．7

C．15

D．8小题2:It seems that visitors ______ in Bangkok.

A．often feel hungry

B．can’t take any photos

C．can have a good time

D．feel a little bored小题3:Which of the following is TRUE?

A．Chiang Mai is a beautiful city in the south of Thailand.

B．The writer left Chiang Mai for Chiang Rai by bus.

C．The writer is traveling alone in Thailand.

D．The writer will take a bus to Chiang Mai.小题4:The people in the village _______________________.

A．are friendly to others

B．like to speak English

C．hope to live in the cities

D．live a very busy life小题5:What is the best title（标题）for the whole diary?

A．My First Travel

B．The Outside World

C．Traveling in Thailand

D．My Trip to Chiang Mai

甲公司属于矿业生产企业，法律要求业主必须在完成开采后将该地区恢复原貌。恢复费用包括表土覆盖层的复原，因为表土覆盖层在矿山开发前必须搬走。表土覆盖层一旦移走，企业就应为其确认一项负债，其有关费用计入矿山成本，并在矿山使用寿命内计提折旧。假定该公司为恢复费用确认的预计负债的账面金额为2500万元。2009年12月31日，该公司正在对矿山进行减值测试，矿山的资产组是整座矿山。甲公司已经收到愿意以5000万元的价格购买该矿山的合同，这一价格已经考虑了复原表土覆盖层的成本。矿山预计未来现金流量的现值为7600万元，不包括恢复费用；矿山的账面价值为8000万元。该资产组2009年12月31日应计提减值准备( )万元。

A．600
B．400
C．200
D．500

警犬训练员属刑事警察。( )

岩溶作用