皮皮学，免费搜题
登录
搜题
【单选题】
保证淬透性的碳素钢,航空和兵器等专用碳素钢、碳素弹簧钢、碳素工具钢都属于:A.
普通碳素钢
B.
特殊质量碳素钢
C.
优质碳素钢
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】阅读理解。 My parents taught me not to waste food. My mom always found ways to make leftovers (剩 余食物) taste good. I went to Ilan to learn about some of their special foods. As I was the re, I learned about...
【简答题】阅读短文，选择正确答案。 My parents taught me not to waste food. My mum always found ways to make leftovers (剩余食物) taste good. I went to Iran to learn about some of their special food. As I was three, I learned a...
【简答题】如何检查发动机机油液位?
【多选题】自动变速器油液检查前需要进行热车,应该如何操作?
A.
起动发动机，无负载（在 P 或 N 位置）时，将发动机转速保持为 3,000 rpm 直至散热器风扇运转，然后使其怠速运转。
B.
车辆停在水平路面上；
C.
将发动机转速保持为 3,000 rpm 直至散热器风扇运转，然后使其怠速运转。 • 踩住制动踏板，操作换挡手柄在每个档位运行； • 每个档位停留 3 秒钟；
D.
关闭点火开关等待 3 分钟。
【单选题】如何更换发动机润滑油及机油滤清器? (1) 举升车量至合适位置并使用扳手拧松放油螺栓,将润滑油放入机油回收桶 ( 2 )安装新的机油滤清器,安装放油螺栓并紧固 ( 3 )打开机油加注口,拔下机油尺,擦拭后放入备件车 ( 4 )使用机滤扳手拧下机油滤清器 ( 5 )降下车辆,加注发动机润滑油并使用机油尺检查液面
A.
3-1-4-2-5
B.
3-1-4-2-5
C.
3-1-2-4-5
D.
3-1-5-2-1
【简答题】完形填空 When I was a young child , my parents often told me that it was time that taught a man everything. I didn’t understand and wondered why __ 1 __ had such a big influence __ 2 __ a person....
【简答题】My parents taught me not to waste food. My mum always found ways to make leftovers（剩余食物） taste good. I went to YiLan to learn about some of their special food. As I was there, I learned about the food...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
