布朗流程缺点是()。
A、投资省
B、运转率高
C、操作弹性大
D、冷箱易冻堵
参考答案:D
The shop assistant showed her several mobile phones and she chose _______
expensive one.
A.less
B.least
C.the less
D.the least
写出二分查找的递归算法。