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【简答题】
1,简述贫血的定义及分类?
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反馈参考答案：
举一反三
【单选题】根据代码,下列正确的是:
A.
本例演示：如何使用三份不同的文档制作一个水平框架。
B.
本例演示：如何使用三份不同的文档制作一个垂直框架。
C.
frame_c 这个框架，如果frame_c.html宽度过大，会显示滚动条。
D.
frame_b.htm的边框为0了
【单选题】下面是正确的Frame类的构造方法的是()
A.
Frame()
B.
Frame(String)
C.
Frame(String,int,int)
D.
Frame(String,int,int,Color)
【单选题】When a switch receives a frame on a port and floods the frame, what does it do with the frame?
A.
Discards it
B.
Changes the destination address to FF:FF:FF:FF:FF:FF
C.
Forwards it out all other connected ports
D.
Clears the switching table and adds the frame source address to the table
【简答题】A．Vocational education is more associated with trades and crafts. B．Young people are trained by employers on the job. C．Vocational education is carried out in education institutions. D．The government ...
【简答题】A．〈frame nosize〉 B．〈frame noresize〉 C． D．
【单选题】Which of the following can best conclude the main idea of the passage?
A.
Vocational education is equal to college and university education.
B.
Graduates from vocational education have vast range of employment opportunities.
C.
Vocational education has to be reformed to be adapted to current demands.
D.
Vocational education has its advantages and disadvantages.
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