在探究“凸透镜成像规律”的实验中，蜡烛、凸透镜和光屏在光具座上的位置如图所示，此时在光屏上得到蜡焰清晰的像，若保持凸透镜位置不动，将蜡烛移到光具座的35cm刻度处，对于此时像的性质判断正确的是（  ）

图甲是用来探究加速度和力之间关系的实验装置示意图，图乙是其俯视图．两个相同的小车，放在比较光滑的水平板上（摩擦力很小，可以略去），前端各系一条细绳，绳的另一端跨过定滑轮各挂一个小盘，盘里可放砝码．两个小车后端各系一条细线，细线后端用夹子固定，打开夹子，小盘和砝码牵引小车运动，合上夹子，两小车同时停止．用刻度尺测出两小车通过的位移，则位移之比就等于它们的加速度之比．为了探究加速度大小和力大小之间的关系，下列说法中正确的是（   ）

    One day after school I was just finishing up some math homework. My dad came back from work and sat right beside me1over my homework with me. We made corrections 2 After that we3and my dad said,＂ I will always4every moment spending time talking with you.＂

    I remember my Dad telling me his stories of when he was 5My dad didn't have a father6He was always moving from place to place with my 7My dad wasn't the easiest kid to 8He would 9with kids at school, which made my grandma worried. He'd act out to release the anger he had from not having his father present in his10and teenage years.

    At high school, things got a little 11 He made a football team, he did well and didn't get into as much 12as before. He also made many friends13those friends was my uncle. My Dad and Uncle were friends all throughout high school. It was through my uncle14my Mom and Dad met15Later, they got married. After I was born, my dad felt that becoming a 16was an honor and that he would not be17in my life.

    I suddenly looked up to see my Dad18at me. I could see in my Dad's eyes how he longed for a19 like this. I continued to do my math homework and20my Dad say,＂ I love you, always.＂

下列关于健康的观点中正确的是（ ）