单项选择题

NASA can tell that vegetation is growing back because of （）.

A．a bright, white light that is reflected
B．little tiny trees that are growing
C．vegetable gardens that are planted
D．a light, pinkish view from space

<上一题目录下一题>

热门试题

填空题

A．scissors B．score C．screen D．sculpture

单项选择题

Among the traffic lights, red light is placed （）.

A．at the bottom
B．in the middle
C．at the top
D．below the green light