A. old and funny B. young and funny C. young and kind
A. tea B. water C. milk
A. science B. music C. art
A. sandwiches B. beef noodles C. egg noodles
A. clean the room B. play sports C. read books
A. friendly but short B. tall and strict C. friendly and pretty
A. vegetables; onions B. vegetables; carrots C. vegetables; tomatoes
A. reads books B. watches TV C. washes the clothes
A. plays football B. plays the pipa C. plays ping-pong
A. maths B. English C. science

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

