Dear Mike,
I’m glad to receive your letter and know your unforgettable(难忘的)experience. Now I’d like to share mine. Last Friday, I was cleaning my room and found an old photo in a drawer. While I was looking at it, the
It was my mother’s birthday eight years ago, and I decided to give her a
The moment I was going to throw everything
This week is her
I’m looking forward to your reply!
Yours,
Lucy
1.A.terrible | B.lovely | C.boring |
A.surprise | B.letter | C.hug |
A.looked up | B.picked up | C.woke up |
A.bought | B.washed | C.made |
A.what | B.how | C.when |
A.away | B.up | C.into |
A.biscuit | B.cake | C.bread |
A.good | B.delicious | C.bad |
A.laughing | B.shouting | C.crying |
A.fifteen | B.fifty | C.fiftieth |
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