系统回油路中没有背压或背压很小时,也会产生液压系统的振动而影响加工工件的精度。
参考答案:对
目前在我国公司实务中很少使用,但并非法律所禁止的股利支付方式有()
A.现金股利
B.财产股利
C.负债股利
D.股票股利
Mr Wang is my physics teacher. He has 1.75 meters in the height. He was born on November 4, 1952. So he is a middle-aged man. He graduated Qinghua University in 1983. After graduation, he becomes a middle school teacher. He has been taught physics for more than 20 years. He is very succeed as a teacher. He has been given a lot of honor. He not only is a good teacher in physics but also speak English and Russian very well. In his spare time, he likes reading books, collect stamps and listening music. Also, Mr Smith is kind-hearted.