—How are you doing, Daisy?— , thank you.
A:I'm OK
B:I'm a teacher
C:I'd love to
D:I'm coming
实验室有下列四种量筒,分别标有量程和最小分度值,要一次较准确量出100g密度为0.8×103kg/m3的酒精,则选用的量筒应该是( )
— May we leave the classroom now?
— No, you ________. You ________ to leave until the bell rings.
Some students in this school abroad as exchange students every year.
如图为“测量物体运动的平均速度”的实验,图中停表的示意图分别表示小车通过斜面A、B、C三点的时刻,B点是全程AC的中点.小车从A点运动到C点的过程中,以下说法正确的是( )