( ) (1) A. talk B. take C. tell
( ) (2) A. carry B. worry C. library
( ) (3) A. butterfly B. dragonfly C. firefly
( ) (4) A. night B. right C.bright
( ) (5) A. insect B. interesting C. Internet
( ) (6) A. 11:15 B. 10:45 C. 11:20
( ) (7) A. every B. very C. fever
( ) (8) A. bedroom B. bathroom C. classroom
( ) (9) A. writes letters B. writes words C. writes e-mails
( ) (10) A.watch cartoons B. wash clothes C. catch insects

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

