题干

函数y=
2
3
-
x
中自变量x的取值范围是(  )

A:x>3

B:x<3

C:x≤3

D:x≥﹣3

上一题 下一题 0.0难度 选择题 更新时间:2018-04-10 10:36:06

答案(点此获取答案解析)

B

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