题目内容:
Whichof the following may illustrate the difference between "competence"and"performance" ? A.What a person "knows" and what he / she "does".
B.What a person "can do" and what he / she "does".
C.What a person "does" and what he / she "knows".
D.What a person "does" and what he / she "can do".
参考答案:
答案解析: