单细胞生物既具有细胞共同的结构特点，也具有生物的共同特征。（判断对错）

依次填入下面句子横线处的词语最恰当的一项是（    ）

       作为语文教师，我们不会笑话学生的，而是告诉他们，文字的背后是一个人____________的人生。巴金的平和是在人生历练过后的____________，冰心的童真和大爱是她的人格力量的____________。人生如茶，有时也是一种____________成全。

自立表现为独立自主的做出决定，不要听取和采纳他人的意见。（   ）

根据短文内容理解，选择正确答案。    Hi, I'm Brian. This is the photo of my family. My grandfather is with glasses. He has little hair. The one standing next to him is my uncle. He is wearing a cap. My grandmother has gray hair. She is a kind woman. She is holding my younger brother. He has short curly hair. The woman standing behind me is my mom. She has straight brown hair. There is a little girl sitting on the table. Her name is Cathy. She is my sister. She is wearing a green T-shirt and a pair of green socks. It's her favorite color. Which one is my father? Well, he is wearing glasses, too. He is in brown shorts and brown shoes. His name is Sam. Now, do you know where he is?

激光散斑测速是一种崭新的测速技术，它应用了光的干涉原理。用二次曝光照相所获得的“散斑对”相当于双缝干涉实验中的双缝，待测物体的速度与二次曝光时间间隔的乘积等于双缝间距。实验中可测得二次曝光时间间隔、双缝到屏的距离以及相邻两条亮纹间距。若所用激光波长为，则该实验确定物体运动速度的表达式是（   ）