we must make sure that______ are clear and easy for the disabled _英语解答

we must make sure that______ are clear and easy for the disabled people to read.
a.marks b.examples c.signs
正确答案为c,可是我查过a的意思和c 差不多啊,为什么就只能用C

人气：367 ℃　时间：2019-12-05 06:35:53

解答

Sign的意思是标识、路牌,指示等等,而mark多为记号的意思.
这里还要根据你的上下文来做决定,不过我相信应该sign是正解.