SAT OC语法!

SAT OC语法!

题目
SAT OC语法!
【A strager,the students were surprised to see him enter the classroom carrying a bowling ball.】
这里选的是the students were surprised to see a stranger carrying a bowling ball enter the classroom
为什么不能选A stranger carrying a bowling ball,the students were surprised to see him entering the classroom.
答案
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
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
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