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The students c1． back to school a2． the National Day h3．. Liu Tao went to Shanghai, he w4． to the B5． and v6． the Shanghai Museum, he s7． many i8． things, and he visited his aunt. Mike and his f9． went to a f10． n11． Star Lake. They p12． some o13． and went f14．. Mike c15． a b16． f17．, he wanted to give it to Liu Tao, he c18． Liu Tao, but Liu Tao w19．at home, so he a20． it by himself.
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
