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1．根据Jack的全家福，选择合适的单词补全句子。
| A. mother B. father C. grandma D. grandpa E. brother F. sister |
(1) Mary is Jack’s
(2) Tom is Jack’s
(3) Tim is Jack’s
(4) Jane is Jack’s
(5) John is Jack’s
(6) Dora is Jack’s
2．判断下列句子正(T)误(F)。
(1) Jack is a girl.
(2) Tom is a boy.
(3) Tim is old.
(4) Dora is old.
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
