问题
单项选择题
双向变量液压泵的图形符号（GB786.1-93）是（）。
A、A
B、B
C、C
D、D
答案
参考答案：D
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双向变量液压泵的图形符号（GB786.1-93）是（）。
A、A
B、B
C、C
D、D
参考答案：D
There was a pet store and the owner had a parrot. One day a walked in and the parrot said to the man ,“Hey you!” The man said, “What!?” The parrot said, “Your is really ugly.” The man got very and went to the store owner and said, “Your bird just my wife. It said she was ugly.” The owner stormed over, the bird, took it into the “black room,” shook it a bit, out a few feathers, and said, “Don’t ever, ever say anything to my customers again. You got that！！！” With that he took the bird and put it back into its cage. The old bird shook out its and relaxed in its cage. A couple of weeks and in walked this guy and his wife again. The parrot said, “Hey you!” The guy said, “What!?” The parrot answered, “You know that.”
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