( ) 1. f __ ther A. a B. o C. u
( ) 2. br__ ther A. a B. o C. u
( ) 3. m __ ther A. a B. o C. u
( ) 4. s __ n A. a B. e C. o
( ) 5. s __ ng A. i B. n C. e
( ) 6. t__ lk A. u B. o C. a
( ) 7. cr__ A. i B. e C. y
( ) 8. l __ ugh A. e B. a C. u
( ) 9. w__ rk A. a B. u C.o
( ) 10. f __ mily A. a B. o C. u
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