写出下列动词的第三人称单数形式、现在分词和过去式
题目
写出下列动词的第三人称单数形式、现在分词和过去式
play
go
visit
read
rain
fly
study
have
get
come
put
open
swim
die
sit
see
write
run
buy
hope
答案
plays playing played goes going wentvisits visiting visitedreads reading readrains raining rained flies flying flewstudies studying studiedhas having had gets getting got comes coming came puts puttin...
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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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