A.图一D内有多种消化液,有许多皱襞和绒毛,这些特点都有利于营养物质的吸收 |
B.图一中乙为脂肪消化程度的曲线,丙为蛋白质消化程度的曲线 |
C.图二中a、b、c曲线代表的物质分别是尿素、无机盐、葡萄糖 |
D.图二中Ⅰ、Ⅱ的内壁起过滤作用,正常情况下Ⅱ中液体含有血细胞和大分子蛋白质 |
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