(1)大哥哥wǎn( )着我的手真chéng( )地说:“以后有什么kùn huò( ),尽管来找我,我会尽力帮助你。”
(2)山hóng ( )bào ( )发了,解放军叔叔们一直坚shǒu( )在大bà( )上,直到hóng( )水tuì( )去。
(3)爷爷cā( )干汗水,挑起沉重的kuāng( ),继续前行,为了多zhèng( )几个钱,他fù( )出了常人无法想象的辛苦。
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