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We have two new friends in our school. They are Mike and Tim. Mike is American. He is twelve. He is in Class Four. He has a little sister. Tim is Canadian. He is twelve, too. He is in Class One. He likes football. He often plays football with Mike. Mike and Tim are good friends. They are both(两者都)in No. 20 Middle School.
1．There are two new friends in our school. （____）
2．Mike and Tim like playing football. （____）
3．Mike and Tim are middle school students. （____）
4．Tim has a little sister. （____）
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
