声音的传播需要介质．在太空中宇航员需要借助无线电来交谈．这说明真空______传
题型：填空题
问题：
声音的传播需要介质．在太空中宇航员需要借助无线电来交谈．这说明真空______传播声音．（填“能”或“不能”）
题型：填空题
| 根据图片，判断句子与图片是(T)否(F) 一致。根据图片，判断句子与图片是(T)否(F) 一致。 | |
| ( ) 1. It's June first today.It's Children's Day. |  |
| ( ) 2. It's seven o'clock in the evening. We're having supper now. |  |
| ( ) 3. It's spring Festiyal， it's in January or February. |  |
| ( ) 4. Today is Sunday,February tenth.Let's go tothe park to fly kites. |  |
| ( ) 5. Today is NationalDay. It's october first. |  |
所示该安全标志表示的意思是（）。