(____) 1. A. socks B. clothes C. cap D. hat
(____) 2. A. yours B. ours C. her D. theirs
(____) 3. A. ruler B. school C. crayon D. schoolbag
(____) 4. A. clean B. tidy C. beautiful D. dirty
(____) 5. A. bedroom B. kitchen C. classroom D. bathroom
(____) 6. A. them B. us C. him D. mine
(____) 7. A. drop B. fall C. stick D. stone
(____) 8. A. when B. whose C. week D. how

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

