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Jack was a school boy. He didn’t like going to school. He always wanted to have more holidays. One day he made a telephone call to his teacher and said in a voice. The voice sounded (听起来) like his father’s. “I am sorry to say that Jack is ill in be
| A．He won’t go to school for three of four days.” |
( ) 1.Jack was very angry.
( ) 2.Jack wasn’t ill in bed.
( ) 3.The teacher was sorry to hear that Jack’s father was ill.
( ) 4.The teacher knew that Jack was speaking at last (最后).
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
