题目内容

Until recently, the support needs of frail older people in Sweden have been met primarily by the state, with there being little expectation that the family would provide care. This () is now changing as increasing emphasis is being placed on the role of the family.

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若以下选项中的变量已正确定义，则正确的赋值语句是：

A. x1=26.8%3；
B. 1+2=x2；
C. x3=8/1+2；
D. x4=1+2=3；

若变量a是int类型，并执行了语句：a=‘A'+1.6；，则正确的叙述是：

A. a如果按照字符型输出为字符‘B’
B. a的值是浮点型
C. 不允许字符型和浮点型相加
D. a的值是字符‘A’的ASCII值加上2

若有定义：int x=3，y=2；float a=2.5，b=3.5；则下面表达式的值为：(x+y)%2+(int)a/(int)b;

在C语言中的实型变量分为两种类型，它们是和。