【单选题】可以用( )来表示刀具的切削路程 lm、切削速度 vc、切削时间 t 之间的关系。
【判断题】凸轮的理论轮廓是按设计尖顶从动件凸轮轮廓的方法作出的轮廓曲线。
【判断题】贴现贷款,指借款人在急需资金时,以未到期的票据向银行申请贴现而融通资金的贷款方式。
【简答题】案例 4 :男孩乐乐, 9 岁,平时喜欢用 ipad 打游戏,一玩就是 2~3 个小时。睡前喜欢躺在床上看书。最近,乐乐发现上课看不清黑板上的字,老师将其座位调前 2 排,情况有所好转。但是,乐乐还是感觉到稍远的东西看不清楚,妈妈带他到医院检查,诊断为 “ 近视 ” 。 问题:( 1 )眼是如何看清近处物体的? ( 2 )近视的原因是什么? ( 3 )如何矫正及预防近视?
【单选题】The author argues that privatization of the publicly-run water services will solve the current water supply problem.
【多选题】贴现贷款是指借款人在急需资金时,以未到期的票据向银行申请贴现而融通资金的贷款方式,贴现贷款的特点有( )。
【单选题】The author argues that a teacher's chief concern should be the development of the student's ______.
A.
personal qualities and social skills
C.
learning ability and communication skills
【单选题】The author argues that a teacher's chief concern should be the development of the pupil's ______.
A.
personal qualities and social skills
C.
learning ability and communicative skills
【单选题】The author argues that a teacher's chief concern should be the development of the student's ______ .
A.
personal qualities and social skills
C.
learning ability and communicative skills