题目

Directions: For each blank in the following passages there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context. When I became an amputee at age 29, I was forced to rethink the idea of physical perfection. My life became different, as I changed from an acceptably attractive woman to an object of pity and __50__. Too busy __51__ physical pain and obvious mobility limitation, I was not aware of this change at first. I was determined to __52__, feeling good about the progress I had made, as I moved forward. __53__, as I made 函数f(x)＝lnx＋2x－6的零点个数为 [　　] A． 0 B． 1 C． 2 D． 3