下列四组函数中表示同一个函数的是_刷题宝

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下列四组函数中表示同一个函数的是（）

A：f（x）=x⁰与 g（x）=1

B：f（x）=|x|与 $g (x) = \sqrt{x^{2}}$

C：f（x）=x与 $g (x) = \frac{x^{2}}{x}$

D： $f (x) = \sqrt[3]{x^{3}}$ 与 $g (x) = {(\sqrt{x})}^{2}$

上一题下一题 0.0难度选择题更新时间:2016-06-28 05:20:45

答案(点此获取答案解析）

B

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关于位移和路程，下列说法正确的是（）

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中央经济工作会议提出，要促进房地产市场平稳健康发展，要坚持“房子是用来住的、不是用来炒的”的定位。对房地产的这一定位，要求地方政府（）
①规范房地产开发、销售、中介等行为，加强住房市场监管

②履行加强社会建设职能，提供充足房源，改善居民居住条件

③坚持以人为本的共享发展理念，使住房回归其居住本性

④依法打击各种炒房行为，防止资金流向房地产市场

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根据短文理解，从A、B、C、D四个选项中选择最佳答案填空。

Mr and Mrs Yates had one daughter. 1 name was Carol, and she was nineteen years old. Carol lived 2 her parents and worked in an office. She had some friends, but she 3any of the boys very much.

Then she met a very 4 young man. His name was George. and he 5 in a bank near her office. They went out together quite 6 , and he came to Carol’s parents’ house twice, and then last week Carol went to her father and said, “I 7 George, Daddy. ”

“Oh, yes,” said 8 .“he’s a nice boy. But has he got any money?”

“Oh, men! All of you are 9 ,” the daughter answered 10 . “I met George on the first of June and on the second he said to me, ‘Has your father got any money?’”

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下列是细胞膜结构示意图，有关叙述不正确的是（）

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下列计算错误的有（）
①a⁸÷a²=a⁴； ②（-m）⁴÷（-m）²=-m²； ③x²ⁿ÷xⁿ=xⁿ； ④-x²÷（-x）²=-1．

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