牵引无力的原因有哪些?
参考答案:
(1)主回路系统泄漏严重;(2)主泵或液压马达泄漏或损坏;(3)制动装置不能完全松闸;(4)系统的高压与低压相互窜通。
Do you know how to make friends with a group of people? Let me t__________ you the steps about making friends with the group. Maybe it’s h__________ to you.
First, you need to know what k________ of group they belong to. If people of the group are shy(害羞的), never ask them “Why don’t you talk?” or “Why are you quiet?” They don’t like it, so d_________ do it.
N_________, remember that each group is different. They will use different words, find different things funny .
Then, the important thing is that you should try to be outgoing(外向的). I_________ you are outgoing, you will become very popular . Remember, n___________ wants to make friends with a quite shy person.
F____________, find a right topic to talk with the group. For example, you can ask people w__________ they will do before the weekend, but don’t make plans at once. S___________ things can change, so just talk with them.
在实习期内驾驶机动车的,应当在车身前部粘贴或者悬挂统一式样的实习标志。