当你对一个物体(狗)不确定时,你会怎么问?( )
A:How old are you?
B:Is it a dog?
C:What's your name?
D:Good morning.
一位生活在元朝的商人,他不可能有的经历是( )
按照提示默写古诗文
如图所示是“探究影响电流做功多少的因素”实验电路之一,
在划横线处填写正确的读音。
____
松鼠
花生
言语
——More and more students wear glasses in our school these days.——I agree with you. Students ___ keep on doing eye exercises to protect their eyes.