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【简答题】
元旦节前布置教室，同学们利用彩纸条粘成一环套一环的彩纸链，测量了部分彩纸链的长度，她得到的数据如下表： 纸环数x（个） 1 2 3 4 … 彩纸链长度y（cm） 20 35 50 65 … （1）把上表中x、y的各组对应值作为点的坐标，在如图所示的平面直角坐标系中描出相应的点，猜想y与x的函数关系，并求出函数关系式； （2）教室天花板对角线长为12m，现需沿天花板对角线各拉一根彩纸链，则每根彩纸链至少用多少个纸环？
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反馈参考答案：
举一反三
【单选题】The explicit or implicit way that an author uses to introduce the characters to the audience is called ________.
A.
narrative
B.
arrangement
C.
characterization
D.
introduction
【简答题】The author uses the example of monkey to argue that robots are ______.
【简答题】The author uses the metaphor 'a fish out of water' to mean______.
【简答题】The author uses the examples of a tycoon and a taxi—driver to show that ．
【单选题】The author mentions 'sight unseen' primarily in order to emphasize that Shor's method
A.
does not allow for the cloning of a bit of quantum information that has not first been recognized
B.
tends to be less reliable than classical information correction, because it is impossible to discern whether Shor's is successful
C.
has been accepted by physicists without much skeptical investigation
D.
allows for a quantum correction where the individual states of quantum bits do not need to be reported.
E.
quantum correction circuits tend to operate at random
【单选题】哪一个不是旅游电子商务点商务的发展的阶段
A.
基于EDI的旅游电子商务
B.
基于互联网的旅游电子商务
C.
基于内联网的旅游电子商务
D.
基于移动技术的旅游电子商务
【简答题】The author uses the example of a monkey to argue that robots are
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