( ) 1. w__ __ __ A. oer B. ear C. rae
( ) 2. g__ __ __ A. une B. aem C. ame
( ) 3. ans__ __ __ A. rea B. wer C. war
( ) 4. heal__ __ __ A. the B. tyh C. thy
( ) 5. af__ __ __ A. tar B. ter C. tor
( ) 6. of__ __ __ A. ten B. ton C. tem
( ) 7. __ __ __ute A. nim B. min C. mea
( ) 8. an__ __ __ A. gre B. rai C. gry
( ) 9. vi__ __ __ A. sit B. set C. sat
( ) 10. cle__ __ __ A. vor B. ver C. var
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