在资料搜集过程中,现成资料与市场调查资料的主要区别在于()。
A.重要程度不同
B.取得的方式不同
C.成本不同
D.作用不同
参考答案:B
驾驶机动车在这样的路段要注意观察,随时避让横过道路的动物。
--- Tom is one of _________ students in my class .
--- Yes . He usually prefers _________ at home to playing outside .
A.the most hard-working , studying
B.more hard-working , to study
C.the most hard-working , to study
D.more hard-working , studying