搜索
(1)A.duck B.run C.pig D.fun
(2)A.pear B.watermelon C.grape D.fruit
(3)A.eleven B.twelve C.twenty D.number
(4)A.in B.on C.where D.under
(5)A.China B.UK C.USA D.Sarah
(6)A.banana B.pear C.short
(7)A.pencil B.car C.ruler
(8)A.pencil B.book C.school
(9)A.dog B.pig C.play
(10)A.red B.one C.green
(11)A.girl B.teacher C.bus
(12)A.class B.school C.pen
(13)A.Chinese B.English C.class
(14)A.mother B.father C.teacher
(15)A.twelve B.five C.box
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
