—I want to a machine to help people cook．—That sounds interesting．_刷题宝

题干

—I want to a machine to help people cook．
—That sounds interesting．

A：discover

B：invent

C：imagine

D：move

上一题下一题 0.0难度选择题更新时间:2011-04-14 02:22:36

答案(点此获取答案解析）

B

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已知数列{a_n}满足a₁=1，S_n=2n﹣a_n（n∈N^*）．

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My name is Anna.I have my lunch at school from Monday to Friday.I like my school lunch.On Mondays we have hamburgers and milk.On Tuesdays and Fridays we have tomato noodles and beef.I like Wednesdays because we often have sandwiches on Wednesdays.On Thursdays we often have noodles.

根据短文内容判断句子的正误。

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____

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下列有关DNA复制、转录和翻译的共同点的叙述，不正确的是：

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下列所示的四种情景中，属于光的直线传播形成的是(　　)

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