搜索
（1）A. fax machine B. photocopier C. computers D. air conditioner
（2）A. ours B. yours C. theirs D. mine
（3）A. stamp B. picture C. them D. these
（4）A. pizza B. bread C. salad D. fries
（5）A. sandwich B. hamburger C. fried chicken D. cheese
（6）A. cup B. butter C. bottle D. glass
（7）A. water B. coffee C. tea D. beer
（8）A. coke B. juice C. drink D. soup
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
