(一) 听一段对话,回答第1〜3小题。
A. It's 11:30. B. It's 12:30. C. It's 10:30.
A. At 12:00. B. At 12:30. C. At 11:30.
A. No, they're going to eat some fish. B. No, they aren't. C. Yes, they are.
(二) 听一段对话,完成第4〜5小题。
A. 4:30 B. 3:00 C. 3:30
A. have a picnic B. play C. play football
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