天天酷跑普通用户每天能做多少个任务？（）
A.6
B.7
C.8
D.9
参考答案：A
He called on his sister to help him _____ his lost wallet. [ ]
A. look for
B. deal with
C. give out
D. concentrate on
某人将现金3000元存入银行，按单利10%计算，1年后的本利和应为( )元。
A．3500 B．3300C．3600 D．3060
