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(1)He often goes to other countries.
A.通常 B.经常 C．非常
(2)We should study hard and stay healthy , too.
A.仍然 B.开始 C.保持
(3)He is a businessman .He often goes to other countries.
A．商人 B.校长 C.渔民
(4)He goes to work by bike.
A．自行车 B.骑自行车 C.乘…
(5)We should study hard ,too.
A.书房 B. 学生 C.学习
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
