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From: rose@ supermail.com
Subject: A trip to China.
Dear Brian,
I'm in Harbin now. How's the weather in Canada? It's cold and snowy here. I'm having fun. The people here are very kind. I'm coming home to Canada on May 31. Tomorrow I will write an email to my parents onthe computer. I miss them very much. But it's a great trip. See you soon.
Your sister,
Rose
1．This email is from _______. ( )
| A．Brian | B．Rose | C．Rose's parents |
| A．Canada | B．Shanghai | C．Harbin |
| A．a letter | B．an email | C．a postcard |
| A．sister | B．brother | C．friend |
| A．likes | B．doesn't like | C．misses |
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
