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It’s four o’clock in the afternoon. School is over. There are three boys and two girls in the playground. Betty is jumping with Marry. The boys are running. Liu Tao is first. Wang Bing is second. Gao Shan is third.
1．It’s Sunday afternoon. （_________）2．There’re six students. （_________）
3．The boys are running in the playground. （_________）
4．Wang Bing is running between Gao Shan and Liu Tao. （_________）
5．Betty can jump, but Mary can’t. （_________）
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
