Ehglish has changed ______time because
题目
Ehglish has changed ______time because
all languages change _______the communication of different cultures.
这是同一道的.
好像是要填介词的,
有两个空啊
Ehglish has changed ______time becauseall languages change _______the communication of different cultures.
这是一整道的
答案
English has changed __by__ time because all language change __and__ the communication of different cultures.
举一反三
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.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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