学进去-教育应平等而普惠
试题
类型:用单词的适当形式完成短文
难度系数:0.65
所属科目:高中英语
阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。

Healthy relationships can be of great 1. (important) to our life. They help us to live a long, healthy, and happy life. The effects of being alone can be as harmful as smoking and other bad 2. (habit).

Research shows that healthy relationships benefit us in many ways. A review of 148 studies found that people with strong social relationships are 50% less likely 3. (die) early. Some research even found that living with a life partner can add 3 years 4. life expectancy (寿命).

Good relationships also help us deal with stress. The support 5. (offer) by a caring friend can provide a buffer (缓冲) against the effects of stress. In 6. study of over 100 people, researchers found that people who completed a 7. (stress) task experienced a faster recovery when they 8. (remind) of their caring friends or family members. However, those who had poor relationships, on the other hand, experienced even 9. (much) stress and higher blood pressure (血压).

Moreover, you may feel richer 10. you have better relationships with others. A survey by the National Bureau of Economic Research of 5,000 people found that doubling your group of friends has the same effect on your wellbeing as a 50% increase in income!

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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

用户名称
2019-09-19

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

用户名称
2019-09-19
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