( ) 1. farmer A. /ɑ:/ B. /ʌ/ C. /ɔ:/
( ) 2. mother A. /e/ B. /z/ C. /ʌ/
( ) 3. world A. / ə / B. / ə:/ C. / i:/
( ) 4. soA. /ʊə/ B. / ə:/ C. /əʊ /
( ) 5. meet A. / i:/ B. / i/ C. /ʊ/
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