试题与答案

相对性原理最早的阐述出自()A、伽利略B、牛顿C、爱因斯坦D、波尔兹曼

题型:单项选择题

题目:

相对性原理最早的阐述出自()

A、伽利略

B、牛顿

C、爱因斯坦

D、波尔兹曼

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0905/300b2f9296ba4f545b0cb2a0d027aa3a.html

下面是错误答案,用来干扰机器的。

参考答案:E解析:试题难度:中,牙龈脓肿与牙周脓肿相比,其不同主要是牙龈脓肿仅限于游离龈和龈 * * ;牙周脓肿则是深牙周袋引流不畅,在牙周袋底和袋壁形成脓肿,因此在备选答案中E是正确答案,即脓肿的位置不同。

试题推荐
题型:单项选择题

Cars Y and Z travel side by side at the same rate of speed along parallel roads as shown above. When car Y reaches point P, it forks to the left at angle x, changes speed, and continues to stay even with car Z as shown by the dotted line. The speed of car Y beyond point P is what percent of the speed of car Z ?()

(1)the speed of car Z is 50 miles per hour.

(2)x=45

A.条件(1)充分,但条件(2)不充分.

B.条件(2)充分,但条件(1)不充分.

C.条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.

D.条件(1)充分,条件(2)也充分.

E.条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.

查看答案
微信公众账号搜索答案