主页
学科
搜索
账户
常见问题
当前学科：汽车修理工（中级）
题目：
判断题
一个轮齿两面齿廓间在分度圆上的弧长是直齿圆柱齿轮的齿宽。
A . 正确
B . 错误
答案：
<查看本题扣1积分>
查看答案
答案不对？请尝试站内搜索
推荐知识点:
ZD6型电动转辙机的摩擦电流为（）。
天南星的主治病证是（）。浙贝母的主治病证是（）。
治疗痞满饮食内停证，应首选（）。
病毒复制过程的各个时期，概括为六个步骤，以下造成病毒高度特异性最关键的步骤是（）。
Women are also underrepresented in the administration and this is because there are so few women full professors. In 1985,Regent Beryl Milburn produced a report blasting（轰动）the University of Texas System administration for not encouraging women.The University was rated认为 among the lowest for the system.In a 1987 update ,Milburn commended the progress that was made and called for even more improvement. One of the positive results from her study was a System-wide program to inform women of available administrative jobs. College of Communication Associate Dean Patrica Witherspoon,said it is important that woman be flexible when it comesto relocating if they want to rise in the ranks. Although a woman may face a chilly climate on campus , many times in order for her to succeed , she must rise above the problems around her and concentrate on her work. Until women make up a greater percentage of the senior positions in the University and all academia,inequities will exist存在. "Women need to spend their energies(精力energy) and time doing scholarly activities that are important here at the University." Spirduso said. "If they do that will be successful in this system.If they spend their time in little groups mourning the sexual discrimination that they think exists here, they are wasting valuable study time." Which of the following statements is true?（）
依据《中华人民共和国环境保护法》，为了防止生物多样性保护的破坏，说法正确有的（）。
使用法兰直角尺可以检查组对的法兰盘水平方向和垂直方向的密封情况及管子中心线的（）情况。
变压器故障跳闸，可能造成电网解列，在试送变压器或投入备用变压器时，要防止（）。
镜铁粉末
简述松片产生原因及防止方法。