作图题:请画出66kVTV二次开口三角侧启动回路图。
参考答案:
见图E-86。
情景交际。
1. 你想知道李明喜欢吃什么吗?你可以这样问他:[ ]
A. What does he like?
B. What do you like?
C. How do you like?
2.“我可以吃一个吗?”用英语怎么说?[ ]
A. May I have a?
B. May I have one?
C. I will have one.
3. 丹尼口渴了,他想喝果汁,他应该说: [ ]
A. He's thirsty. He wants to drink juice.
B. I'm hungry. I want to eat.
C. I'm thirsty. I want to drink juice.
毛毛虫是一种危害多种作物(如玉米、小麦等)的害虫,下面是毛毛虫发育多的四个时期的形态图,请回答下列问题
(1)毛毛虫的个体发育顺序是___ (填代码),它的发育属于 ___发育。
(2)与毛毛虫相比,蝗虫的个体发育不经过的时期是_________(填代码)