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问题 单项选择题

现代政策科学兴起的背景是（）。

A、文艺复兴

B、民权运动

C、产业革命

D、二次大战

答案

参考答案：C

单项选择题

Questions 24-30


·Look at the questions for this part.
·You will hear a passage about "Health and Fitness ". You will listen to it twice.
·For Questions 24-30, indicate which of the alternatives A, B, or C is the most appropriate response.
·Mark one letter A, B, or C on the Answer Sheet.

When Americans eat so much restaurant and packaged food, they ______.

A．can limit fat and calories

B．can limit fat but not calories

C．can’t limit fat or calories
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单项选择题

执行下面程序后输出的正确结果是( )。
public class Test
public static void main(String args[])
byte x=3,y=4;
long r=80L;
System.out.print(r/y);
System.out.print(",");
System.out.print(x/y);

A．20.0,1

B．20.0,1.0

C．20,0

D．20,1.0
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