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Invitation Welcome to our Charity Sale Date: Friday, Feb. 10th Place: Playground Time: 2:00 p.m.—4:30 p.m. Preparation(准备): Second-hand books, toys and hand-made food are welcomed. Tel: 0516-85777777 Sunshine Primary School |
1．This invitation is about _____. ( )
| A．a birthday party | B．a reading day | C．A Charity Sale |
| A．on Tuesday | B．on Friday | C．on Sunday |
| A．morning | B．afternoon | C．evening |
| A．Students. | B．Teachers. | C．Farmers. |
A． | B． | C． |
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
