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Dear Mike，
I am in Xinjiang now. Every day I had a good time with my cousins. On the first day, we climbed the Tianshan Mountain. We visited the Tianchi Lake. It was very beautiful. On the second day, we went to a restaurant and ate delicious food. On the third day, we went to a park and flew (fly 的过去式)kites. We were very happy. Tomorrow I will be back home! I bought some presents (礼物)for you. Guess what they are. Ah， it's a secret (秘密).
Yours，
Tom
(1). Tom is at home now.
(2). They climbed the Tianshan Mountain and visited the Tianchi Lake on the first day.
(3). They flew kites on the second day.
(4). They ate delicious food on the third day，
(5). Tom bought a toy car for Mike.
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
