(1)“在此时有谁不流泪呢?”意思是说:
A.在此时没有谁流泪。( )
B.在此时谁也不流泪。( )
C.在此时谁都会流泪。( )
(2)瑞恩的梦想是:
A.攒够70元。( )
B.攒够2000元。( )
C.攒钱买钻井机。( )
A.给非洲孩子修一口井,让他们有干净的水喝。( ) |
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