>
英语
>
Jane,please turn off the lights befor—— you leave the classroom.A.after B.before c.until D.but
说明以一下原因?
人气:224 ℃ 时间:2019-08-21 13:14:24
解答
根据四个选项的意思来判断.A.在...之后 B.在..之前 C.直到...D.但是
题干的意思是:请在你离开教室之前把灯关了.
所以应该选择B.before.
这样解释明白了吗?
推荐
please ( ) to turn off the lights when you leave the classroom
问:Please ( ) the lights before you leave the class.A.turn right B.turn left C.turn on D.turn off
Jane,please turnoff the lights-----you leave the classroom.
()9.Please don't leave without___the lights.A.turn off B.to turn off C.turning off D.turn on
Please don't leave without___the lights.A.turn off B.to turn off C.turning off D.turn on
一物体沿直线向东运动,前一半位移的平均速度是3M/S,后一半位移的平均速度为:2M/S,则整个位移内的平均速度为多少?
测量长方体密度,可以先测量他的长、宽、高,根据v=什么?
已知n为正整数,且x^3n=2,求(2x^3n)²+(-3x^2n)³的值.
猜你喜欢
they were at school last sunday ,____?(改为反义疑问句)
质量为5千克的物体,在20牛水平推力的作用下,沿水平向右运动,物体受到地面的阻力为物体重力的0.2倍,求
一个圆柱体的底面半径是3分米,求它的侧面积和表面积.
若定义在区间(3,正无穷大)内的函数fx=log以2a为底(x-2)的对数满足fx<0,则a的取值范围为?
运动的物体不可能受静摩擦力的作用?
将二次函数y=x2-2x+3化为y=(x-h)2+k的形式,则h+k=_.
正三棱柱abc 中,点d是bc的中点bc=2bb1=更好2求证a1c平行面ab1d 求证bc1垂
What does the teacher say?
© 2024 79432.Com All Rights Reserved.
电脑版
|
手机版