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问题 选择题

某物质的溶解度曲线如下图所示，他可能是（　　）

A．KNO3

B．SO2

C．NaCl

D．Ca（OH）2

答案

A、KNO3的溶解度随着温度的升高而增大，故与图示符合；

B、二氧化硫是气体，气体的溶解度随着温度的升高而减小，故与图示不符合；

C、NaCl的溶解度受温度的影响变化不大，故与图示不符合；

D、Ca（OH）2的溶解度随着温度的升高而减小，故与图示不符合．

故选A．

阅读理解

This chart shows the top 10 songs from TOP HITS HOT 100 of the week ending July 8,2003.
This
Week
1
Week
Ago
2
Weeks
Ago
3
Weeks
Ago
Title
Performer, Lyricist, Producer, Record Company
Weeks
on
Chart
1
3
5
9
BACK
FOR
GOOD
Take That
G Barlow
Chris Poter And Gary Arlow BMG
10
2
2
1
2
RUN
AWAY
The Real McCoy
J Wind, Oickmix, Jeglitzs
Fresh Line And Bermarr
Brothers MBG
11
3
1
2
3
HERE’S
JOHNNY
Hoeus Pocus
Xtro And Cubrick
Xtro And Cubrick
Central Station Records
9
4
4
3
5
TOTAL
ECLIPSE
OF THE
HEART
Nieki French
Jim Steiman
J Spingate
Shock
10
5
5
4
1
THINK
TWICE
Celine Dion
A Hill And P Sinfild
Christopher Neil
Sony
12
6
9
12
14
SUKIYA
KI
4 Pm
H Nakamura
Veit Renn
Folygram
3
7
8
17
19
MOUTH
Merril Bainbridge
Ross Fraser
George Siewooi And Owen
Boeweell
BMG
8
8
19
31
77
EVERYB
ODY ON
THE
FLOOR
Tokyo Ghetto Pussy
Tokyo Ghetto Pussy
Trancy Spacer
Stony Records
4
9
6
9
13
COTTO
N EYE
JOE
Rednex
Jan Ericsson
Pat Reiniz
BMG
107
10
14
14
34
STRON
G
ENOUG
H
Sheryl Crow, David
Baerwald, Kevin Gilbert,
David Rickett＆Brain
Macleod
Bill Bottrell
Polygram
7
63．The song that has risen most in the chart over the three weeks is         .
A．Mouth                                                B．Cotton Eye Joe   
C．Strong Enough                                    D．Everybody on the Floor
64．Which song has been in the chart for the longest period?
A．Back for the Good                               B．Cotton Eye Joe
C．SUKIYAKJ                                         D．Strong Enough
65．The performer who had the song with best rank two weeks ago is           .
A．Merril Bainbridge                                                               B．H Nakamura
C．The Real McCoy                                  D．Tokyo Ghetto Pussy
66．The chart shows that Mouth is         .
A．becoming less popular each week          B．becoming more popular each week
C．the most popular song on the chart        D．as popular as when it entered the chart
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填空题

A.条件（1）充分，但条件（2）不充分.

B.条件（2）充分，但条件（1）不充分.

C.条件（1）和（2）单独都不充分，但条件（1）和条件（2）联合起来充分.

D.条件（1）充分，条件（2）也充分.

E.条件（1）和（2）单独都不充分，条件（1）和条件（2）联合起来也不充分.

能求每支健齿灵牙膏上涨了百分之几．
(1)每支健齿灵牙膏上涨了0.5元；
(2)每支健齿灵牙膏上涨为7元．
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