— Whatcolor ____________theseflowers? — 发布时间:2017-04-23 16:08 │ 来源:www.tikuol.com 题型:选择题 问题: — What color ____________ these flowers?— They ____________ red.[ ]A. are, isB. are, are
题型:选择题 将质量为27g的铝块,轻轻地放入装满水的杯子中,并使其浸没在水中,这时从杯中溢出的水的体积为______cm3,溢出水的质量为______kg.(ρ铝=2.7×103 kg/m3) 查看答案