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Are you looking for a new way to exercise?
More and more people of all ages are trying water exercise in a swimming pool.
First, I need to ask a question —
Finally, all kinds of exercise are good for you, but water exercise has one more important advantage.
| A．Why is exercising in the pool easier? |
| B．There are many advantages of this exercise. |
| C．Do you want to keep cool while you are exercising? |
| D．Most people feel more relaxed when they are in the water. |
| E．Second, most kinds of water exercise are also safe and easy to learn. |
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
