赞题库-背景图
单项选择题

It is well-known that electricity can be transmitted from where it is produced to where it is needed.

A．大家知道，电可以从发电的地方输送到需要的地方。
B．众所周知，把电从发电的地方输送到需要的地方是可以的。
C．可以把电从发电的地方输送到需要的地方，这是已经知道的。
D．这是很了解的，电从生产电的地方到需要它的地方是可以的。
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热门试题

单项选择题Now, scientists still don’t really know ______.

A. whether animals can think about the past and the future
B. how children learn and what happens when we speak
C. why animals can understand some things more quickly than human beings
D. at what age, a child can speak his language very well

单项选择题A. 13 hours. B. 8 hours. C. 9 hours. D. 14 hours.

A. 13 hours. B. 8 hours. C. 9 hours. D. 14 hours.