定期锻炼对身心健康有奇效,有助于提高身体的平衡能力和灵活性。但方法不当也会带来伤害,以下是确保运动安全又有乐趣的诀窍:
1.在进行具体的运动前,最好征询医生的建议,并做好准备活动。
2.准备适合的服装和装备。
3.运动要适量,要补充水分。
字数:100左右。
How to take exercise properly and safely
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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

