【单选题】【消耗次数：1】
白光经过一个三棱镜时会形成赤、橙、黄、（）、青、蓝、紫。
①
绿
②
黑
③
赭
④
白
参考答案：
复制
纠错
相关题目
【单选题】
三个箱子,第一箱中有4个黑球1个白球,第二箱中有3个黑球3个白球,第三个箱中有3个黑球5个白球,现随机取一个箱子,再从这个箱中取出一个球,则取到白球的概率是( ).
①
53/120
②
9/19
③
67/120
④
10/19
【单选题】
在地理课上，金老师提出了这样一个问题：“黄赤交角的大小决定着五带的范围。假如黄赤交角变大，地球的五带区域将会有什么变化?”请问，从问题的句法角度来看，这是一个（）
①
A.前言后提问语式
②
B.前言式提问
③
C.后语式提问
④
D.独立式提问
随机题目
【单选题】
At first Bob was puzzled by Virginia s waving, but then it __ his mind that she was trying to tell him something.
①
crossed
②
passed
③
occurred
④
opened
【单选题】
If there were no subjunctive mood, English ___ much easier.
①
will be
②
would have been
③
could have been
④
would be
【单选题】
The open university was started in order to help those who ___ having a university education when they were young.
①
stopped
②
failed
③
missed
④
ceased
【单选题】
If it ___ next week, the crops would be saved.
①
rains
②
will rains
③
would rain
④
should rain