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【单选题】
A．计量变量
B．定量变量
C．无序分类变量
D．有序分类变量
A.
用某种药物治疗肾小球肾病患者73人，治疗结果如下：
B.
C.
治疗结果属于哪种变量（）
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】设以下变量均为int类型,则值不等于7的表达式是
A.
(x=y=6, x+y,x+1)
B.
(x=6,x+1,y=6,x+y)
C.
(y=6,y+1,x=y,x+1)
D.
(x=y=6,x+y,y+1)
【单选题】Part ADirections: Read the following four texts．Answer the questions below each text by choosing A, B, C or D．(40 points)The long year of food shortage in this country have suddenly given way to appar...
A.
The abundant food supply is not expected to last
B.
Britain is importing less food
C.
Despite the abundance, food prices keep rising
D.
Britain will cut back on its production of food