(______) 1. p ____ ____ ty (聚会) A. ar B. ir
(______) 2. l ____ ____ ch (午餐) A. an B. un
(______) 3. c ____ k ____ (蛋糕) A. i; e B. a; e
(______) 4. tid ____ (整理,打扫) A. e B. y
(______) 5. t ____ g ____ ther (一起,一块儿) A. a; e B. o; e
(______) 6. invit ____ tion (请柬) A. i B. a
(______) 7. st ____ r ____ (故事) A. o; y B. o; e
(______) 8. f ____ l ____ (电影) A. i; m B. a; m
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