试题与答案

在泵控式的电液舵机中,改变推舵液流方向的方法是采用()。A.改变浮动环的偏心方向或改

题型:单项选择题

题目:

在泵控式的电液舵机中,改变推舵液流方向的方法是采用()。

A.改变浮动环的偏心方向或改变倾斜盘的倾斜方向

B.改变舵机油泵的转向

C.改变三位四通换向阀阀芯的位置

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C解析: 本题的4个选项中只有选项C)Name属性适用于所有控件,其他只是适用于部分控件。如:对话框控件就没有BackColor和BorderStyle属性。

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books one after a   8   . It made them in a fearful mess (凌乱不堪). Mr. King came up to her and asked,

"Excuse me, madam. What can I do for you?" "Your books are all dull (乏味的)," said the girl. "I want a d   9   

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      "That's easy," Mr. King smiled. He b   10    out a cookbook (烹调书) and said, "Here you are, madam."

1.________   2._________   3._________   4._________   5._________  

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