反映骨骼成熟度最方便和敏感的检查部位是（）。 A．足部 B．肘部 C．膝部 D．手腕

下列著作中属于语录体散文集的是( )。

A．《汉书》

B．《战国策》

C．《论语》

D．《左传》

什么样的房屋称为现房？

When I was growing up, I was embarrassed to be seen with my father. He (1) severely crippled and very short, and when we would walk together, his hand on my arm (2) balance, people would stare. I would inwardly be afraid (3) squirm at the unwanted attention. If he ever noticed or was bothered, he never let (4) .
It was difficult to coordinate (5) steps - his halting, mine impatient - and because of that, we didn’t say much as we went along. But as we started out, he always said, "You (6) the pace. I will try to adjust to you. "
Our usual walk was to or (7) the subway, which was how he got to (8) . He went to work sick, and (9) nasty weather. He almost never missed a day, and would (10) it to the office even if (11) could not: a matter of pride!
He never talked about himself as an object of pity, (12) did he show any envy of the more fortunate or able. What he looked for in others was a "good heart", and if he found one, the owner was good enough for him.
Now that I am older, I believe that is a proper standard (13) which to judge people, even though I still don’t know precisely (14) a "good heart" is. But I know the times I don’t have one myself.
He has (15) gone many years now, but I think (16) him often. I wonder if he sensed my reluctance to be seen with him during our (17) . If he did, I am (18) I never told him how sorry I was, how unworthy I was, how I regretted it. I think of him when I complain about trifles, when I am (19) of another’s good fortune, when I don’t have a "good heart".
At such times I put my hand on his arm to regain my (20) , and say, "You set the pace, I will try to adjust to you.\

有编号为Ⅰ、Ⅱ、Ⅲ的三条赛艇，它们在静水中的速度依次为每小时v₁、v₂、v₃千米，且满足v₁＞v₂＞v₃＞v＞0，其中v为河流的水流速度。它们在河流上进行追逐赛，规则为：
（1）三条赛艇在同一起跑线上同时出发，逆流而上，在出发的同时，有一浮标顺流而下；
（2）经过1小时，Ⅰ、Ⅱ、Ⅲ号赛艇同时掉头，追赶浮标，谁先追上谁为冠军。如果在整个比赛期间各艇的速度保持不变，则比赛的冠军为（）。

A．Ⅰ号

B．Ⅱ号

C．Ⅲ号

D．三条赛艇并列