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As you've just found out, opening a book doesn't require much effort. However, even that would be i
After lying for hours on cold ground, with only a thin sleeping bag to protect you from rain or
ice, your fingers would probably be so numb(麻木的)that you could hardly m
You might be surprised to hear that the number of people sleeping rough(露宿)in London has
doubled in the last five years and has i
Once we bring a homeless person out of the freezing cold, we need your help to give him a
w
Will you please give a Christmas gift of £25, which could p
St Mungo’s welcome pack? It could have a towel, shampoo, soap(肥皂), so a homeless person can have a hot s
For Harvey, it was losing his job that led to him becoming homeless. Since Harvey was welcomed into St Mungo’s, he has received t
With your gift, you could help us offer a warm welcome to someone I
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
