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Many years ago, there was a farmer. He worked hard in the field every day. But he thought the rice grew so slowly. Then he had a good way to help them grow faster. He pulled his rice upper (向上拉) from the ground. He worked in the field for one day. In the evening, he told his family what he did. When he went back to his field the next day, all his rice died.
1．The farmer worked hard in the field every day. （2．The farmer’s rice grew very fast in the field. （
3．The farmer thought out a way to help the rice grow slowly. （
4．The farmer worked in the field to help the rice for two days. （
5．The rice died the next day. （
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
