如何理解这个if not better than

如何理解这个if not better than
 
这样一道题：http://yingyu.chazidian.com
Jim plays football as well as，if __________ than，Mike.
A. no better            B. not better           C. no good             D. not good
此题应选B。容易误选A。这是一个省略句，其中的 ifnot better than＝if he doesn’t play football better than。全句意为：吉姆踢足球如果不是比迈克踢得更好，至少也是一样好。
请做以下类似试题：
1. Her pronunciation is as good as，if _________ than，her teacher’s.
A. no better           B. not better            C. no good              D. not good
2. This bridge is as strong as，if _________ than，thatone.
A. no stronger       B. not stronger        C. no strong             D. not strong
3. In that business，he earned as much as，if _________than，$40000.
A. no more            B. not more             C. no much             D. not much
4. He has been to Guilin as many as，if_________ than，ten times.
A. no more             B. not more            C. no much             D. not much
答案：1. B 2. B 3. B 4. B