关于核能，下列说法中错误的是（   ）

（2015•枣庄）如图是由6个相同的小正方体组成的几何体，那么这个几何体的俯视图是（　　）

右面图片是第一次世界大战时各国的征兵宣传海报,各国参加战争的共同目的是(  )

    Hello，boys and girls! Nice to1 you! My name2 Alice Smith．I am a 3．I am a 13．Look, 4 this? It's a photo 5 my family．These are my parents and this is my6，Linda．She is 9．My mother is a teacher in a 7．My father is a teacher ,too．My pen is red．and Linda’s ruler is 8。too．Our 9 number is 826-9167．You can 10 us at it．I love my family．