皮皮学，免费搜题
登录
搜题
【简答题】
轮齿是齿轮上的一个凸起部分,插入配对齿轮的相应凸起部分之间的空间,凭借其外形以保证一个 齿轮带动另一个齿轮运转。一对齿轮的齿,依次交替接触,从而实现一定规律的相对运动的过程和形 态,称为
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】通过 Javascript 使页面后退的代码是
【单选题】Q3-3-2_4.mp3 4.
A.
He would not let the woman have 14 days off
B.
He finally agreed to let the woman take 14 days off.
C.
He was a volunteer for habitat for humanity.
D.
He would finish the woman's work instead.
【简答题】A．Because he wanted to dig out gold and silver. B．Because he wanted to enjoy the climate there. C．Because he wanted to get away from the army. D．Because he was sent there by his father.
【单选题】Q2-3-2_4.mp3
A.
Telling the woman an interesting life story.
B.
Teaching the woman skills to find a good job.
C.
Encourage the woman to pursue a happy marriage.
D.
Giving the woman advice on important things in life.
相关题目：