she has received a letter from her uncle .which one has the closest meaning with the underlined par
题目
she has received a letter from her uncle .which one has the closest meaning with the underlined par
划线的地方是received a letter from.
A received a present from
B finished a letter
C heard from
D got a present from
答案
选c hear from就是收到某人来信.
第一个是收到礼物,第二个是写完信,最后一个是从某处得到礼物.
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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