( )(1) A.QSP B. QPS C. SQP
( )(2) A. UWV B. UVW C. WVU
( )(3) A. bdk B. kbd C. dbk
( )(4) A. DV543 B. SQ345 C. CQ435
( )(5) A. a tape B. a tap C. a stapler
( )(6) A. knife B. book C. school bag
( )(7) A. a copybook B. a storybook C. a bag
( )(8) A. gky B. jky C. hki
( )(9) A. on B. in C. this
( )(10) A. crayon B. toy train C. knife
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