Most people are fond of swimming.We must know some rules___water satety in oreder to keep safe.

Most people are fond of swimming.We must know some rules___water satety in oreder to keep safe.

题目
Most people are fond of swimming.We must know some rules___water satety in oreder to keep safe.
A of B for C as Dby
选什么?为什么?解释详尽些.
答案
B
rule(s) for 针对…的规则:
There seems to be one rule for the rich and another for the poor.
好像对富人有一套规定,对穷人又另有一套规定似的.
What is the rule for forming plurals?
构成复数的规则是什么?
举一反三
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
1,人们染上烟瘾,最终因吸烟使自己丧命.
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