Extension can be illustrated by the following example:（ ）
A.butcher → one who kills goats B.journal → periodical C.companion → one who shares bread D.allergic → too sensitive to medicine正确答案B
Extension can be illustrated by the following example:（ ）
A.butcher → one who kills goats B.journal → periodical C.companion → one who shares bread D.allergic → too sensitive to medicine正确答案B
