独立结构 试题 book in hand/with a book in his hand
题目
独立结构 试题 book in hand/with a book in his hand
1) Our teacher entered the classroom,____.
2) Our teacher entered the classroom,with ____.
A.a book in hand B.book in hand
C.a book in his hand D.book in his hands
答案
B
C
原因,book in hand =a book in his hand ,book in hand 是 a book in his hand 的省略写法.
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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