A.new B.help C.it D.were E.because F.truth G.both H.dropped I.a J.more |
A blind boy sat on the steps of a building with a hat by his feet. He held up a sign which said, "I am blind; please
There were only a few coins in the hat. A man was walking by. He took a few coins from his pocket and
Soon the hat began to fill up. A lot
The man said, "I only wrote the
What he had written was, "Today is a beautiful day but I cannot see it."
Do you think the first sign and the second sign were saying the same thing?
Of course

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

