电磁波可以传递____，所以我们能通过WiFi上网；电磁波可以传递____，所以我们能用微波炉加热食物．（选填“信息”或“能量”）

      Ann is   1  American worker. She works2a big factory(工厂) in America. It's 3in the morning. Ann 4 up. She is sitting on the bed. She is putting  5her clothes. She  6nothing to do today.
     Now Ann  7  at the table. She is    8 her breakfast. There is a cup of orange and some bread on the table. Ann is  9  the orange and eating the bread. She is  10today's newspaper.

属于体液而不属于内环境的液体是

如图，直线AB、CD相交于点E，DF$\parallel$AB. 若∠D=70°，则∠CEB等于(     )