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| Found: There’s a grey jacket in our lost and found case. Please call Jack at 837-4925. | Found: I’m David from Class 4,Grade 6 in Yangguang Primary School. I’m looking for the owner of a camera. | Found: I picked up a watch yesterday. If it is yours, please call me. Tel: 325-8064 Mary | Found: I have lost my library card. Please e-mail Jim if you get it. E-mail address:fiuingjim@tom.com |
注：lost and found case (失物招领处）
( )⑴837-4925 is Jack’s telephone number.
( )⑵If you lose your jacket, you can call Mary at 325-8064.
( )⑶Jack wants to know whose camera it is.
( )⑷David is a primary school student.
( )⑸If you pick up Jim’s library card, you can tell him on the Internet.
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
