( ) 1 ---Bad habits don’t come suddenly, do they?
---________.
A. Yes, they do B. No, they don’t
C. Yes, they don’t
( ) 2 Some boy students fall into bad habits ________.
A. in school B. on the street C. A and B
( ) 3 The boys may steal from ________.
A. copying B. gambling C. writing
( ) 4 It’s ________ to fall into bad habits, but ________ to get rid of them.
A. easy; hard B. hard; easy C. easy; easy
( ) 5 The writer wants to tell us ________.
A. to steal for money B. to get rid of bad habits at the beginning
C. to go uphill
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