In European countries, if you want to send people flowers as gift, you’d better not
A: uy tulip and daffodil(黄水仙)
B: uy lilac(丁香) and daisy(雏菊)
C: chrysanthemum(菊花) and calla lily(马蹄莲)
D: uy lilac and apple flowe
A: uy tulip and daffodil(黄水仙)
B: uy lilac(丁香) and daisy(雏菊)
C: chrysanthemum(菊花) and calla lily(马蹄莲)
D: uy lilac and apple flowe
举一反三
- In Poland, if you want to send flowers as a gift, you should remember: flowers should be sent in an _______number, never sending white or red flowers, especially carnations, lilies and roses.
- 下列不可压缩二维流动中，哪个满足连续方程： A: ux=2x，uy=2y B: ux=0，uy=2xy C: ux=5x，uy=-5y D: ux=2xy，uy=-2xy
- 对于不可压缩流体，满足连续性条件的运动为（）。 A: u=2x+y，uy=x-x（y-2y） B: u=xt+2y，uy=xt-yt C: u=xy，uy=xy D: u=y+2xz，uy=-2yz+xyz，uz=0.5xz+xy
- 对于不可压缩流体，满足连续性条件的运动为（）。 A: ux=2x2+y2，uy=x3-x(y2-2y) B: ux=xt+2y，uy=xt2-yt C: ux=x2y，uy=xy2 D: ux=y2+2xz，uy=-2yz+x2yz，uz=0.5x2z2+x2y4
- “它黑黝黝地我在那里,牛似的模样。”中“黑黝黝”读 A: hēiyǒuyǒu B: hēiyōuyōu C: hēiyǒuyǒu和hēiyōuyōu都可以