人寿保险的基本特征在于（）。 A.风险特殊性 B.业务短期性 C.业务长期性 D.储

阅读理解。

     Bob was happy. He was at a new school, and the other students were friendly. "Hi, Bob!" they said. But

some students said, "Hi, Peter!" Bob didn't understand. He asked another student, "Why do some students

call me Peter?"

     "Oh, that's easy to answer," the students said. "Peter was a student here last year. Now he goes to a

different school. You look like Peter. Some students think that you're Peter."

     Bob wanted to meet Peter. He got Peter's address from a student and went to Peter's house. Peter opened

the door. Bob couldn't believe his eyes. He looked really like Peter! Bob and Peter had the same colour eyes

and the same smile. They had the same black hair. They also had the same birthday. And they both were

adopted (领养) by two different families. 

     Bob and Peter found out that they were twin brothers. Soon after the boys were born, one family adopted

Bob, and another family adopted Peter. Bob's family never knew about Peter, and Peter's family never knew

about Bob.

     Bob and Peter's story was in the newspaper. There was a photo of Bob and Peter next to the story. A

young man named John saw the photo in the newspaper. John couldn't believe his eyes. He looked really like

Bob and Peter! He had the same colour eyes and the same smile. He had the same black hair. He had the same

birthday. And he, too, was adopted by another family.

     Later John met Bob and Peter. When Bob and Peter saw John, they couldn't believe their eyes. John looked

really like them! Why did John look really like Bob and Peter? You can guess. Bob and Peter are not twins.

Bob, Peter and John are triplets (三胞胎).

1. Bob was ______ at a new school. [ ]

A. sorry

B. happy

C. worried

D. sad

2. Some students thought ______. [ ]

A. John was Peter

B. Bob was John

C. Bob was Peter

D. Peter was John

3. John knew the story from ______. [ ]

A. the newspaper

B. a book

C. other people

D. his parents

4. Bob, Peter and John were ______. [ ]

A. friends

B. classmates

C. brothers

D. twins

千分尺的两工作面，如果其中一个工作面与测量轴线垂直，那么两工作面的平行度用平行平晶检定时，所需平行平晶的块数为（）。

A.四块

B.一块

C.二块

java.lang.object类中实现线程通信的两个方法是( )。

A．wait()和notify()

B．write()和read()

C．output()和input()

D．start()和stop()

工程师收到变更工程价款报告之日起（）内，予以确认。

A．14

B．42

C．28

D．7

如果法院受理起诉，可能作出的是何种判决( )

A．维持判决

B．撤销判决

C．赔偿判决

D．确认判决