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（1）A. o’clock B. clock C. class
（2）A. what B. where C. whose
（3）A. picture B. teacher C. sweater
（4）A. pair B. pears C. wear
（5）A. 12 B. 20 C. 22
（6）A.slippers B. sneakers C. sandals
（7）A. go to school B. go to bed C. go home
（8）A. white shirt B. green skirt C. blue T-shirt
（9）A. What are there B. What are those C. What are these
（10）A. That is a horse B. That is a house C. That is a mouse
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
