题目内容：
Thedemandsforgold-collarworkerswillnotbesatisfiedif___________. A．theyarenotregardedasanewclassofworker
B．theschoolsdonotmakeanefforttocultivatetheirstudents
C．theAmericanbusinessdoesnotfundtheschools
D．thereisnoappropriateeducationsystem
参考答案：
答案解析：