甲委托乙保管其电脑，乙未经甲同意将该电脑以市价卖给了不知情的丙，下列选项中正确的是(

Where is the company going to operate

A．Paris.

B．London.

C．Berlin.

D．Chicago.

小题1:What else do we need?（同义句）

What ______ ______ do we need?

小题2:He is going to play basketball tomorrow .( 画线提问 )

________ ______ he going to ______ tomorrow ?

小题3:He spends half an hour going home by car every day.（同意句）

It ______ ______  thirty                        home.

小题4:Cross the road and you will find the river. ( 写同意句 )

_______Cross the road ,        find the river.

小题5:The cinema is 20 metres from the café . (画线提问)

_________ ________ is the cinema from the café?

数组是一种数据结构，对数组通常进行的两种基本操作是（）。

A．插入和删除

B．插入和赋值

C．查找和修改

D．查找和删除

Each time I see a balloon, my mind flies back to a memory of when I was a six - year – old girl. It was a rainy Sunday and my father had recently died. I asked my mom if Dad had gone to heaven. “Yes, honey. Of course.” she said.“Can we write him a letter?”

She paused, the longest pause of my short life, and answered, “Yes.”My heart jumped. “How? Does the mailman go there?” I asked.

“No, but I have an idea.” Mom drove to a party store and returned with a red balloon. I asked her what it was for.“Just wait, honey. You’ll see.” Mom told me to write my letter. Eagerly, I got my favorite pen, and poured out my six - year - old heart in the form of blue ink. I wrote about my day, what I learned at school, how Mom was doing, and even about what happened in a story I had read. For a few minutes it was as if Dad were still alive. I gave the letter to Mom. She read it over, and a smile crossed her face.She made a hole in the corner of the letter where she looped the balloon string. We went out-side and she gave me the balloon. It was still raining.“Okay, on the count of three, let go. One, two, three.”The balloon, carrying my letter, darted upward against the rain. We watched until it was swallowed by the mass of clouds.Later I realized, like the balloon, that Dad had never let his sickness get him down. He was strong. No matter what he suffered, he’d persevere, dart up, and finally transcend this cold world and his sick body. He rose into sky and became something beautiful. I watched until the balloon disappeared into the gray and white and I prayed that his strength was passed on. I prayed to be a balloon.

小题1:When the girl asked her mother if they could write to her father, her mother _________.

A．believed it easy to do so

B．thought her a creative girl

C．felt it hard to answer

D．found it easy to lie小题2: When the girl was told that she could send a letter to her father, she __________.

A．jumped with joy

B．was worried that it couldn’t be delivered

C．started writing immediately

D．became excited小题3: In the eyes of the author, what was the rain like?

A．An incurable disease

B．An unforgettable memory.

C．The failures her father experienced

D．The hard time her father had.小题4: What would be the best title for the passage?

A．An unforgettable experience

B．Fly to the heaven

C．The strong red balloon

D．A great father

B细胞活化过程中的第一信号是

A．B细胞表面抗原受体识别和Ag
B．IL-1的作用
C．识别的MHC
D．IL-2受体的产生
E．黏附分子受体与配体的相互作用