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【简答题】
用“▼”定义一种新运算：对于任意实数m、n和抛物线y=ax 2 ，当y=ax 2 ▼(m，n)后都可以得到 ，例如：当y=ax 2 ▼(3，4)后都可以得到 。若函数y=x 2 ▼（1，n）得到的函数如图示，则n=（ ）。
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反馈参考答案：
举一反三
【简答题】A．Use beautiful words. B．Use words at random. C．Use words with passion and emotion. D．Use words with care and accuracy.
【简答题】Write down some words with the prefix "de"
【单选题】We are often cheated by some words in that______
A.
their dominant meanings have not been determined
B.
sometimes they mean something different from their dominant meanings
C.
our natural impulse makes a mistake
D.
the dominant sense of a word is not accurate in our minds
【单选题】Some words are hard to ______ because they have many different uses.
A.
express
B.
explain
C.
define
D.
describe
【单选题】---Could I use your dictionary to look up some new words ? ---OK, ________.
A.
that’s all right
B.
that’s right
C.
it’s a pleasure
D.
help yourself
【简答题】当MCS-51引脚 信号有效时,表示从P0口稳定地送出了低8位地址.
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