It is very convenient for me to go to work every day because the bus runs _ A.every—ten-minute B.eve
题目
It is very convenient for me to go to work every day because the bus runs _ A.every—ten-minute B.every tenth minute C.every tenth minutes D.every ten minute
答案
选B
如果是ten minute,必须是minute必须是复数.基数词后面是复数,序数词后面是单数,这是规则.所以C和D都错.A选项 every-ten-minute,every和ten之间不该有连字符的
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已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
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