搜索
Eric and Ben are brothers. Eric is nine years old. Ben is eleven years old. Eric is a fat boy, but Ben is a thin boy. Eric can play cards, but Ben Can play basketball. Today is Eric’s birthday. His friends are in his home. They give Eric some presents（礼物）. Danny gives him a ball. It’s black and white. It’s a football. Alice gives him a toy bear. It’s lovely. It’s brown. Mary gives him some balloons. Three are red, five are blue and two are black. Now they are eating a cake. They are happy.
1．Eric is Ben’s brother. ( )| A．正确 | B．错误 |
| A．正确 | B．错误 |
| A．正确 | B．错误 |
| A．正确 | B．错误 |
| A．正确 | B．错误 |
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
