There are three basic ways of language to writing, and all known graphic systems use one or a bination of these.
A. mitting
B. attaching
C. paring
D. relating
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(答案→)A. mitting
B. attaching
C. paring
D. relating
解析： mit...to 托付，交付：1)He was mitted to the care of his aunt.(他被托付给他的姨妈照管。) 2)I have already mitted the rules to memory.(我早已记住这些规则了。)mit sth. to writing(把......写下来)。