【简答题】The girl who found the ring received a generous_____of five pounds. a.Prize b.allowance c.income d.reward
【简答题】(自选题)如图,已知平面直角坐标系,A、B两点的坐标分别为A(2,-3),B(4,-1)。 (1)若P(p,0)是x轴上的一个动点,则当p=____时,△PAB的周长最短; (2)若C(a,0),D(a+3,0)是x轴上的两个动点,则当a=____时,四边形ABDC的周长最短; (3)设M,N分别为x轴和y轴上的动点,请问:是否存在这样的点M(m,0)、N(0,n),使四边形ABMN的周长最短?若...
【单选题】The girl found the Tshirt sold online was ________ that in the supermarket.