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【单选题】
Water power stations are built _____ big waterfalls and where the eater runs fast.A.
which are
B.
which has
C.
where there have
D.
where there are
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举一反三
【简答题】（1）一次函数的图象如图(1)，求其解析式； （2）设二次函数的图象如图(2)所示，求此函数的解析式．
【简答题】设解析函数w=f(z)=P(x，y)+iQ(x，y)的实部P只为u=x2+Ay2的函数，试求常数A之值(A=0除外)，并给出f(z)之式．
【判断题】On average children have mastered most of distinctive sounds of their L1 before they are three years old.
A.
正确
B.
错误
【简答题】on average children have ed most of the distinctive sounds of their first language before they are ________years old.
【简答题】太阳能电池能吸收阳光并把它变成电。
【判断题】On average, children love up to 100 times a day, but Adults only love about 17 times a day.
A.
正确
B.
错误
【简答题】_______ can absorb sunlight and ______ electricity.太阳能电池能吸收阳光并把它变成电。
【简答题】太阳能电池(solar cell)能吸收阳光并把它变成电。
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