【单选题】6 Part ⅠListening Comprehension Section C 16.
【多选题】下列属于TNT线上发货操作流程内容的是()
【判断题】阅读下列的代码 public class Demo{ public Demo(){} public void Demo(int x){} } 上述代码中,构造方法Demo重载了。
【单选题】Section C 16. Questions 16 to 18 are based on the passage you have just heard.
A.
Everything seemed to be changing.
B.
People were formal and disciplined.
C.
People were excited to go travelling overseas.
D.
Things from the Victorian era came back alive.
【多选题】下列属于TNT线上发货操作流程内容的是( )
【简答题】(10分) 下 图所示为回油节流调速回路。液压缸两腔面积 A 1 =100×10 -4 m 2 , A 2 =50×10 -4 m 2 , A 3 =200×10 -4 m 2 , A 4 =120×10 -4 m 2 ,调速阀最小压差 △p=0 . 5MPa。当缸的负载F从0 - 66kN时,缸向右运动速度保持不变。压力损失忽略不计,试计算。 (1)负载F为0kN和66kN时,泵工作压力Pp,分...