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Carl and Tim are students in Grade Six. They are good friends. They want to join some clubs after school. There are a lot of clubs in the school. They are the fishing club, the swimming club, the basketball club and the music club. Carl wants to join the fishing club. Because he is interested in fishing. He asks Tim, “Tim, what's your hobby?” Tim says, “My hobby is swimming, but I can't swim very well.” Can you guess which club Tim wants to join?
1．Tim is Carl's brother. （____）2．There aren't many clubs in the school. （____）
3．Students can join the football club in the school. （____）
4．Carl wants to join the fishing club. （____）
5．Tim may join the swimming club. （____）
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
