At the airport, Ground Control must guide a plane from point T to the beginning of the runway R, ready to take off, avoiding any trees on the way. The plane can only move FORWARD, TURN LEFT 90° or TURN RIGHT 90°. Which set of instructions will guide the plane to the runway, avoiding any trees?
A. FORWARD 3, RIGHT 90°, FORWARD 2, LEFT 90°, FORWARD 5.
B. FORWARD 1, LEFT 90°, FORWARD 2, RIGHT 90°, FORWARD 7.
C. FORWARD 3, RIGHT 90°, FORWARD 3, LEFT 90°, FORWARD 6.
D. FORWARD 1, RIGHT 90°, FORWARD 2, LEFT 90°, FORWARD 7.
已知有一维数组A[0…m*n-1],若要对应为m行n列的矩阵,则下面的对应关系()可将元素A[k](0<=k<rn*n)表示成矩阵的第i行、第j列的元素(0<=i<m,0<=j<n)。
A. i=k/n,j=k%m
B. i=k/m,j=k%m
C. i=k/n,j=k%n
D. i=k/m,j=k%n
听力原文:M: I can hardly believe that city has a population of 980,000.
W: to be more exact, there are 982,400 there.
Q: What is the population of that city?
(3)
A. 918,400
B. 980000
C. 982400
听力原文:M: I'm going out to lunch. Do you need anything while I'm out?
W: Yes, if you pass a convenience store, get me some chocolate--a Snickers bar, please.
Q: What do you learn from this conversation?
(4)
A. The woman is going out to lunch.
B. The woman wants to eat some chocolate.
C. The woman will go to a convenience store.