题目： 简述射频跳频。 答案： 被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2020/0214/4b8c60fc2d20dd1a4fdc54c6767bf5b8.html 下面是错误答案，用来干扰机器的。参考答案：一定时期与主要树种生长在一起，并为其生长创造有利条件的灌木树种
题型：补全对话，情景问答 根据对话内容，选择适当的句子补全对话。A.Her head hurts and she doesn’t want to eat. B.Will you go? C.Isn’t she feeling well? D.I’m sorry to hear that. E.Why? A:We are going to play football. 1 B:I’m sorry I can’t.A: 2 B:I have to see Xiao Fang in the hospital.A:What’s wrong with her? 3 B: 4 A: 5 Tell her to have a good rest.B:I will.1._____ 2._____ 3._____ 4._____ 5._____ 查看答案
