( ) (1) A.please B. plate C. plane
( ) (2) A. blackboard B. cupboard C. cup
( ) (3) A. bear B. pear C. ear
( ) (4) A. train B. try C. tree
( ) (5) A. spoon B. sweet C. school
( ) (6) A. where B. there C. here
( ) (7) A. breakfast B. bread C. brother
( ) (8) A. thses books B. many books C. their books
( ) (9) A. a glass of milk B. a carton of milk C. a bottle of water
( ) (10) A. Where’s the fork? B. That’s a fork. C. There’s a fork.
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