某元素X的气态氢化物的化学式为H2X，则X的最高价氧化物的水化物的化学式为（）

Mum went to Peter’s bed and said, “I want to borrow Tim’s radio for you?” Peter touched the letter in his pocket (口袋) and said, “Thanks, Mum!” “Today I want to send you a special gift on the radio. It’ll surprise you. I will come back soon,” she said and quickly left in the heavy snow.

Peter took out the letter. He got it this afternoon. Mum didn’t know about it. Mum wrote in the letter: The 26^th of this month is my son Peter’s birthday. Could you bless（祝福）him? He has been ill for one month. The radio station wrote in the top: I’m sorry that we have cancelled（取消） this program.

Mum came back with a radio. There was lots of snow on her clothes. And the program began quickly. Next, Peter got very surprised. “At first, we planned to cancel this program, but lots of people like it very much. Now, let’s bless the following（下列的） people together. Kate, Martin, Linda┅” The list was very long. Mum was too tired and she fell asleep. Peter didn’t hear his name to the end. But he was quite moved. He woke up Mum, “Mum, I heard my name just now. Thank you for your gift, Mum!” Mum smiled with tears. Peter also smiled with tears. He believed it was his best gift.

小题1:It was ____________ in Peter’s birthday.

A. rainy              B. snowy                  C. windy

小题2: What was Mum’s special gift to Peter?

A. She wrote a letter to him.           B. She blessed him in the radio.

C. She asked the radio station to bless him.

小题3:Why didn’t Peter give the letter to his mother?   Because _________________.

A. he was ill for a month             B. his mother was very tired

C. his mother would be disappointed

小题4:How did Peter’s mother feel after the program?

A. Moved              B. Tired              C. Surprised

小题5: What do you think of Peter?

A. He is a brave boy.     B. He likes telling lies.       C. He loves his mother.

按长期股权投资准则规定，下列事项中，投资企业应采用权益法核算的有（）。

A.投资企业能够对被投资单位实施控制的长期股权投资

B.投资企业和其他投资方能够对被投资单位实施共同控制的长期股权投资

C.投资企业对被投资单位不具有共同控制或重大影响，并且在活跃市场中有报价、公允价值能够可靠计量的长期股权投资

D.投资企业对被投资单位具有重大影响的长期股权投资

已知数据表A中每个元素距其最终位置不远，为节省时间，应采用的算法是______。

A) 堆排序
B) 直接插入排序
C) 快速排序
D) 直接选择排序

简述电收尘工作原理。

“国”字在书法里有41种写法，是汉字中写法较多的一个字。下列“国”字中被使用最晚的是（）

A.A

B.B

C.C

D.D