Dragon Boat Festival(龙舟节) is popular
A.on | B.in | C.at |
A.look | B.boat | C.holiday(假期) |
A.do | B.buy | C.drink |
A.look | B.make | C.do |
A.rice | B.noodles | C.beans |
A.trees | B.grass | C.leaves |
A.eat | B.drink | C.like |
A.hill | B.street | C.lake |
A.buy | B.watch | C.look |
A.to | B.and | C.or |
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