题目内容

按行优先顺序存睹下三角矩阵的非零元素，则计算非零元素aij(1≤j≤i≤n)的地址的公式为

A. LOC(aij)=LOC(a11)+i×(i+1)/2+j
B. LOC(aij)=LOC(a11)+i×(i+1)/2+(j-1)
C. LOC(aij)=LOC(a11)+i×(i-1)/2+j
D. LOC(aij)=LOC(a11)+i×(i-1)/2+(j-1)

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Einstein helped us to understand the laws of ________.

A. nature
B. everything
C. the world
D. the universe

听力原文：W: Dad, a new Nike store has just opened on the corner.
M: Yes, I know.
W: Well, I want to buy a pair of tennis shoes. I have just joined a tennis club.
M: That's nice! I'm happy you've decided to do some sports.
W: And ltd like to buy Nike.
M: Come on, Mary, it's not for you.
W: But everyone in the club wears Nike. They say it's the best.
M: Maybe it is. But how much is a pair of Nike shoes？
W: Don't worry about that. I have a part-time job now, and I have saved enough money.
M: That's good. To tell you the truth, I also want a Nike myself.
8. What is the relationship between the two speakers？
(8)

A. Husband and wife.
B. Father and daughter.
C. Teacher and student.
D. Shop assistant and customer.

Section A
Directions: This section is to test your ability to understand short dialogues. There are 5 recorded dialogues in it. After each dialogue, there is a recorded question. The dialogues and the questions will be spoken only once. When you hear a question, you should decide on the correct answer from the 4 choices A , B, C, and D.
听力原文：W: Does your mother feel any better today？
M: She is much better now, thanks. She should be coming home in a few days. The operation was a success, and she would recover very soon.
Q: Where is the man's mother now？
(1)

A. In the hospital.
B. At work.
C. At home.
D. In the countryside.

安全垫是风险投资可承受的最高损失限额。 ()

A. 正确
B. 错误