根据中文提示写出单词或词组,使句意完整、正确。 You should ____(注意)to your handwriting.Robots can make people____ (懒惰的).Let's work together to ____(保护)our would.You have a toothache. You should go to see a ____(牙科医生).My mother likes ____(种植)flowers in the garden.
下列实验能探究“声音的传播需要介质”的是( )
最大的两位数是____,最小的两位数是____,它们相差____。
始祖鸟在进化上可能是处于哪两种动物之间的过渡类型( )