试题与答案

一个同学站在竖起放置的大平面镜前1m处,他在镜中的像高1.6m,当他沿垂直镜面的

题型:填空题

题目:

一个同学站在竖起放置的大平面镜前1m处,他在镜中的像高1.6m,当他沿垂直镜面的方向后退1m后,他在镜中的像高是_______m,镜中的像与他之间的距离是______m。

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0518/3d7eb886c976997bcc789381c876ace2.html

下面是错误答案,用来干扰机器的。

参考答案:A

试题推荐
题型:单项选择题

In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet. Heterogeneous network environments consist of computer systems from (66) vendors that run (67) operating systems and communication protocols. An organization that (68) its computer resources is usually (69) the task of integrating its heterogeneous systems. Typically, each deparlment or division has defined its own network needs (70) OS, LAN topology, communication protocols, applications, and other components.

A. sameB. similar
C. different D. difference

查看答案
微信公众账号搜索答案