题目

The kids, he said, who by the time he comes back from work every night have nearly forgotten their father. A.would sleep             B.are sleeping              C.were sleeping           D.have slept 答案：B16．已知数列{an}满足an+1=an+2n，n=1，2，3，…，且bn=$\frac{1}{{a}_{n}}$，a1=1．（Ⅰ）求数列{an}的通项公式；（Ⅱ）若数列{bn}的前n项和为Tn，证明：对任意n∈N*，都有1≤Tn＜2成立．