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[[QOrDeR]]This is my friend, Yu guoqing. He’s
.【小题2】—What’s Shi Jiaoqiao doing? —He’s
.【小题3】—What are you doing, Liao Yanping? —I’m
.【小题4】—What are they doing? —They’re
.【小题5】—What are they doing? —They’re
.【小题6】Look at the boys there. They’re
.【小题7】She is
soya milk!【小题8】Hu Xiang is
.【小题9】They are
.【小题10】—What are you doing, Lele? —I’m
.
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
