Ⅴ形发动机曲轴的连杆数等于（）。
A.气缸数
B.气缸数的一半
C.气缸数的一半加l
D.气缸数加1
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下面是错误答案，用来干扰机器的。
参考答案：以农村为代表的礼俗社会，人们有共同的利益和生活目标，亲属关系、邻里关系、朋友关系等自然的社会关系支配一切，大家共同劳动，团结互助，亲密无间，由共同的语言和传统维系在一起，有共同的善恶观念...
已知等腰三角形的两边长分别为4cm和8cm，则此三角形的周长为______cm．
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| My first job was at a local restaurant, where I worked for seven years and learned so many lessons, especially from a fellow 1 . Helen was in her 30s and had extraordinary self-confidence, something I was really 2 . I looked up to Helen 3 she was doing what she loved- 4 people better. She always made everyone, customers and co-workers, 5 and feel good. Being a waitress changed my life. One of my 6 customers was Fred. He always ate an omelet, and when I saw him 7 , I tried to have it on his table as soon as he sat down. Thanks to the newfound confidence I 8 from Helen, I dreamed of having my own 9 . But when I called my parents to ask for a loan (贷款), they said, "We just don't have the money." The next day, Fred saw me and asked, "What's 10 ? You're not smiling today." I 11 my dream with him and said, "Fred, I know I can do more if somebody 12 just have faith in me." Before long he handed me checks 13 $50,000-along with a note that I have to this day. It reads, "The only collateral (抵押品) on this loan is my trust in your 14 as a person. Good people with a dream should have the 15 to make that dream come true." I took the checks to Merrill Lynch, where the money was provided for me. I 16 working at the restaurant, making 17 for the restaurant I would open. My plans soured, though, and I lost the 18 . Later I decided to apply for a job at Merrill Lynch. Even though I had no experience, I was 19 and ended up becoming a pretty good agent. 20 I paid back Fred the $50,000 plus 14% annual interest. Five years later, I was able to open my own firm. | ||||
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下列各句加粗词的意义和用法与例句相同的一项是[ ]
例句：见其发矢，十中八九，但微颔之
A．安能屈豪杰之流，扼腕墓道，发其志士之悲哉
B．今王发政施仁，使天下仕者皆欲立于王之朝
C．不愤不启，不悱不发
D．百发百中
三种通用寄存器型指令集结构分别有什么优缺点？
血清蛋白电泳时通常用pH8.6缓冲液，此时各种蛋白质带有的电荷为（）
A.白蛋白带正电荷，其他蛋白带负电荷
B.白蛋白带负电荷，其他蛋白带正电荷
C.白蛋白和其他蛋白均带负电荷
D.白蛋白和其他蛋白均带正电荷
E.白蛋白和其他蛋白均不带电荷
