社会服务机构能在短时问内快速筹款的方式是（）。
A.项目申请
B.私人恳请
C.电话劝募
D.特别事件筹资活动
参考答案：C
若函数f（x）的值域为[1，4]，则f（x+1）的值域为______．
— Mum, I really think Dad should have a break and get relaxed.
—Yes. He_________ too long.
A．read
B．had read
C．has been reading
D．is reading
