Someone says, ‘Time is money.’ But I think time is
Time is usually limited. Even a second is very important. We should make full use of our time to do
In a word, we should save time. We shouldn’t
A.much | B.less | C.much less | D.even more |
A.why | B.what | C.that | D.because |
A.nothing | B.something | C.anything | D.things |
A.play | B.to playing | C.to play | D.playing |
A.stop | B.leave | C.let | D.give |
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