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（1）A. helpful B. holiday C. healthy D. house
（2）A. flower B. flat C. fresh D. forest
（3）A. building B. bridge C. village D. behind
（4）A. picture B. potato C. principal D. path
（5）A. clothes B. closet C. curtain D. city
（6）A. away B. make C. tree D. lake
（7）A. wash B. much C. clothes D. chess
（8）A. over B. on C. road D. own
（9）A. meals B. floor C. table D. tell
（10）A. flat B. set C. sky D. any
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
