搜索
（_____） 1. _______ is coming!
A. The Spring Festival B. Christmas
（_____） 2. At the Spring Festival, we have _______.
A. sweets and peanuts B. dumplings
（_____） 3. We say, “_______”
A. Happy New Year! B. Merry Christmas!
（_____） 4. At Christmas, we _______.
A. give presents B. eat lots of food
（_____） 5. Look! I’ve got a new book. It’s about _______.
A. sports B. festivals
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
