Jijing

Jijing, Texas, Jan 24
onion 2004-01-25 15:25:53
AI.
75. There are essentially two forces that motivate people: self-interest

and fear.

AA.
120. Because travel from our country to foreign countries ....

Math:
240,

1. One ball will drop from a certain height. The height it will reach

after rebounding from the floor is 75 percent of the previous height. The

total travel is 2146cm when it touchs the floor on third time. Ask for

the original height?
a)400cm
b)500cm
c)600cm
d)700cm
e)800cm
Answer: c

2.
Jan's 160. change 4w/3 to 5w/4.
my Answer: D, 12

3.DS, the sum of four consecutive odd numbers is 12 less than the sum of

four consecutive even numbers, ask for the least among the odd numbers?
a) the sum of four consecutive odd numbers is 48.
b) the sum of four consecutive even numbers is 60.
my answer: D.

4. one rectangle with perimeter of 18*Sqr2 is inscribed by two identical

squares(there is a picture which shows: the two squares are turned 45

degree so that one vertex of a diagonal of one square touches one vertex

of a diagnoal of the other inside the rectangle, and the rest of vertex

of each diagonal of two squares just touches the edge of length and width

of the rectangle. I hope that I made it clear), ask for the perimeter of

a square?
my answer: 12.
2*(a^2) = ((1/2)*L)^2, 2*(a^2) = w^2, 2(L+w)=18*Sqr2, get a=3

5. 3x + 7y = 9, ask for ratio?
my answer: -3/7

6. pick up 2 from 12 items, the order does not matter, How many

selections are there?
My answer: C(2, 12) = 66.

7. sb A finishes the first 10 miles with speed of 40miles/hr, and the

rest of 20 miles with speed of 60miles/hr, ask average speed?
my answer: 51.4

8. DS. two kinds of balls in a box, A and B, pick two balls from the box,

ask the probability that at least one A ball is picked?
a) A:B=3:1
b) the total balls in the box is less than 20.
My: e

9. which of following satisfy f(ab)=f(a)f(b)?
My: f(x)=Sqr(x)

SC:
1. ...., something has grown (three times) the industry's average rate.
a)three times
b)three times of
c)at three times
d)at three times that of
e)
I think the answer is a) or c)

RC:
P1:
Jan's 21.
first question: the theme of passage?
My answer: provides several explanations to a phenonmenon and provided a
revised view.

last question: which of following affects the vigilance of the animal EXCEPT:
My answer: D) dominance.

P2:
Jan's 26.
q1: what is the common in both Jackonian and Whig?
My answer: they both do not think that the bank is not desirable.

P3:
Jan's 27.
q1: what could be infered about the whistle of dolphin?

CR:
1. Jan's Dec's 3.
2. Jan's 6

　

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