问题
填空题
甲乙两个机器人同时按匀速进行100米速度测试,自动记录仪表明:当甲距离终点差1米,乙距离终点2米;当甲到达终点时,乙距离终点1.01米,经过计算,这条跑道长度不标准,则这条跑道比100米多______米.
答案
设这条跑道长x米.根据两人的速度比相等,速度比即在相等的时间内路程之比,得
=x-1 x-2
,x x-1.01
x=101.
∴这条跑道比100米多1米.
甲乙两个机器人同时按匀速进行100米速度测试,自动记录仪表明:当甲距离终点差1米,乙距离终点2米;当甲到达终点时,乙距离终点1.01米,经过计算,这条跑道长度不标准,则这条跑道比100米多______米.
设这条跑道长x米.根据两人的速度比相等,速度比即在相等的时间内路程之比,得
=x-1 x-2
,x x-1.01
x=101.
∴这条跑道比100米多1米.
Passage Two
What did the speaker do when he was on safe grounds
A.He screamed with fright.
B.He began to chase the cows again.
C.He rode fast to see his father.
D.He got off and sat down trembling.