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（1）A.I go to bed at 9:00.
B. It’s 9:00.
C. It’s in the morning.
（2）A.It’s summer.
B. I like summer.
C. It’s in summer.
（3）A.It’s Sept. 1st.
B. It’s Sept. 10th.
C. It’s in Sept. 10th.
（4）A.Yes, it is.
B. No, it is.
C. Yes, she is.
（5）A. I’d like to swim.
B. I often make a snowman.
C. I often swim.
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
