A.①血液②血浆③血细胞④红细胞⑤白细胞⑥血小板 |
B.①花蕊②雄蕊③雌蕊④柱头⑤花柱⑥子房 |
C.①菜豆种子②种皮③胚④胚根⑤胚轴⑥胚芽 |
D.①脊椎动物②恒温动物③变温动物④鱼⑤两栖动物⑥爬行动物 |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2