It is important for you to make a plan before you begin to do the experiment ,or your work will ...
题目
It is important for you to make a plan before you begin to do the experiment ,or your work will ...
It is important for you to make a plan before you begin to do the experiment ,or your work will ____ a loss .
A.reduce
B.suffer
C.switch
D.complain
答案
B
这句话的意思是,在开始实验前,做好计划是很重要的,否则你将遇到很多麻烦!
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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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