问题
单项选择题
二进制数4566对应的十进制数是( )。
A．56
B．89
C．34
D．70
答案
参考答案：C
解析：二进制数转换成十进制数的方法是按权展开。
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二进制数4566对应的十进制数是( )。
A．56
B．89
C．34
D．70
参考答案：C
解析：二进制数转换成十进制数的方法是按权展开。
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| If you have ever been discouraged because of failure,please read on.For often,achieving what you __1__to do is not the important thing.Let me explain. Two brothers decided to dig a__2__hole behind their house.As they were working,a couple of older boys stopped by to__3__. "What are you doing?"asked one of the visitors. "We plan to dig a hole all the way through the earth!" one of the brothers__4__excitedly. The older boys began to laugh,__5__the younger ones that digging a hole all the way through the earth was__6__.After a long__7__,one of the diggers picked up a jar full of spiders,worms and a wide variety of insects.He__8__the lid and showed the wonderful contents to the scoffing (嘲笑)__9__. Then he said quietly and__10__,"Even if we don't dig all the way through the earth,look what we have found along the way!" Their__11__was far too ambitious,but it did__12__them to dig.And that is what a goal is for-to cause us to move in the__13__we have chosen；__14__to set us to digging! But not every goal will be fully__15__.Not every job will end successfully.Not every relationship will endure.Not every hope will come to pass.Not every love will last.Not every endeavor will be completed. Not every dream will be__16__. But when you__17__your aim,perhaps you can say,"Yes,__18__look at what I found along the way! Look at the wonderful things which have come into my life because I tried to do something!" It is in the__19__that life is lived.And I believe it is joy in the journey,in the end,that truly__20__. | ||||
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