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【简答题】
Part B For this part, you are allowed 30 minutes to write a composition no less than 120 words on the title of The Average Family Income and Expenses in the U. S. Study the following table carefully and your composition should be based on the information given in the table. Write your composition to: (1) state the general information (2) compare the information in 2002 and in 2003 (3) draw a conclusion 2002 2003
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【单选题】下列对人地关系的叙述,正确的是( )
A.
人类影响、改造自然生态系统的能力在不断提高
B.
人类是环境的产物，人类只能被动地适应环境
C.
地理环境能为人类提供无限的物质和能量
D.
只要充分发挥人的主观能动作用，环境就可以按照人类的意志发展
【单选题】In the metals industry, hydrogen is used to prevent metals from tarnishing while undergoing______.
A.
treated by heat
B.
heat treatments
C.
by heat treatments
D.
heat-treated
【单选题】According to the author, in what way are the metals and people alike?
A.
They are both strong.
B.
They both suffer from stress.
C.
They are easy to snap.
D.
They will snap when the level of stress is over a point.
【简答题】已知椭圆C焦点在x轴上，其长轴长为4，离心率为 3 2 ， （1）设过定点M（0，2）的直线l与椭圆C交于不同的两点A、B，且∠AOB为锐角（其中O为坐标原点），求直线l的斜率k的取值范围； （2）如图，过原点O任意作两条互相垂直的直线与椭圆 x 2 a 2 + y 2 b 2 =1 （a＞b＞0）相交于P，S，R，Q四点，设原点O到四边形PQSR一边的距离为d，试求d=1时a，b满足的条件．
【判断题】In impact testing of metals, metals will experience ductile failures with much greater absorption of energy below the critical temperature.
A.
正确
B.
错误
【单选题】People and metals all have a point at which they will be overcome by the pressure being _______.
A.
exerted
B.
snapped
C.
influenced
D.
accumulated
【单选题】下述C语言代码的运行结果是( )。 static void Main(string[] args) { int a=2,b= -1,c=2; if(a
A.
0
B.
2
C.
3
D.
4
【单选题】下述C#语言代码的运行结果是( )。
A.
num1大 num1=50
B.
num2大 num2=30
C.
num1大 num1=50 num2大 num2=30
D.
语法错误不能运行
【单选题】下列对人地关系的叙述,正确的是( )
A.
人类影响、改造自然生态系统的能力在不断提高
B.
人类是环境的产物，人类只能能被动地适应环境
C.
地理环境能为人类提供无限的物质和能量
D.
只要充分发挥人的主观能动作用，环境就可以按照人类的意志发展
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