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【单选题】
Is there a negative or positive relationship between social expenditures and child poverty rates?
A.
Negative
B.
Positive
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参考答案：
参考解析：
刷刷题刷刷变学霸
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【单选题】己定义两个字符数组a,b,则以下正确的输入格式是( )。
A.
scanf(“%s%s”,a,b);
B.
get(a,b);
C.
scanf(“%s%s”,&a,&b);
D.
gets(“a”),gets(“b”)；
【单选题】If the geographical condition of an area is “water stressed,” what is a preferred public policy for that area?
A.
Build good roads, rail to the port; maintain relations with coastal neighbors, etc.
B.
Scale up public health interventions to control climate-related diseases.
C.
Examine and develop alternative options for domestic energy sources, such as geothermal, hydro, wind and solar power; emphasize energy efficiency.
D.
Emphasize irrigation, specialize in crops that do not require huge amounts of water.
【单选题】以下程序的输出结果是（）。char str1[30]={“People's Republic of ”};char str2[]={“China”};printf(“%s”,strcat(str1,str2));
A.
China
B.
People's Republic of
C.
People's Republic of China
D.
People'sRepublicofChina