—You seem to like sweets.
—_______ .That’s probably why I’m becoming fatter and fatter.
seem 是连系动词,不能用be动词来回答。So I do 是“的确如此”表示同意对方的观点 so do I “我也一样”答案为A。
—You seem to like sweets.
—_______ .That’s probably why I’m becoming fatter and fatter.
据国际田联《田径场地设施标准手册》,400米标准跑道由两个平行的直道和两个半径相等的弯道组成,有8条跑道,每条跑道宽1.2米,直道长87米;跑道的弯道是半圆形,环形跑道第一圈(最内圈)弯道半径为35.00米到38.00米之间.
某校据国际田联标准和学校场地实际,建成第一圈弯道半径为36米的标准跑道.小王同学计算了各圈的长:
第一圈长:87×2+2π(36+1.2×0)≈400(米);
第二圈长:87×2+2π(36+1.2×1)≈408(米);
第三圈长:87×2+2π(36+1.2×2)≈415(米);
……
请问:
(1)第三圈半圆形弯道长比第一圈半圆形弯道长多多少米?小王计算的第八圈长是多少?
(2)小王紧靠第一圈边线逆时针跑步、邓教练紧靠第三圈边线顺时针骑自行车(均以所靠边线长计路程),在如图的起跑线同时出发,经过20秒两人在直道第一次相遇.若邓教练平均速度是小王平均速度的2倍,求他们的平均速度各是多少?
(注:在同侧直道,过两人所在点的直线与跑道边线垂直时,称两人直道相遇)
—I’m sorry to have kept you waiting long.
—Never mind. I ____ here for only a few minutes.
—Will you be back ____ five in the afternoon?
—I’m not sure, maybe later than that.
如图,O为坐标原点,直线l⊥y轴,垂足为M,反比例函数y=k/x(k≠0)的图象与l交于点A(m,3),△AOM的面积为6
(1)求m、k的值;
(2)在x轴正半轴上取一点B,使OB=OA,求直线AB的函数表达式.
Roy made several kites, but _____ of them can fly high in the sky.