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（1）A．classroom B. bathroom C. bedroom
（2）A. key B. crayon C. pen
（3）A. four B. twenty C. toow
（4）A. cat B. kitchen C. fish
（5）A. phone B. fridge C. on
（6）A. table B. soup C. sofa
（7）A. bowl B. spoon C. juice
（8）A. dinner B. doctor C. breakfast
（9）A. fork B. chopsticks C. four
（10）A. fish B. noodles C. desk
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
