问题
单项选择题
十进制数45用二进制数表示是
A．1100001
B．1101001
C．0011001
D．101101
答案
参考答案：D
解析：解析：十进制向二进制的转换采用“除二取余”法。
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十进制数45用二进制数表示是
A．1100001
B．1101001
C．0011001
D．101101
参考答案：D
解析：解析：十进制向二进制的转换采用“除二取余”法。
It was a cold winter's night when I stopped for gas on my way home from work．I was tired and had a slight 21 ． I worked in a 22 doctor's office and this was one of those days when the unexpected happened, making the schedule run 23 than usual．It seemed I was going to be late 24 home and my husband, being the 25 person, would be ready to pronounce me late once again． Maybe 26 I hurried, I could still make it home． I was heading inside to 27 for my gas when I noticed an older couple at the counter, I heard them asking for 28 to the local hospital．It was the same hospital that I had just 29 a few minutes ago． The young man at the counter was trying to be 30 in explaining how to get there, with two other people making 31 ．One of them was 32 trying to give them a whole different route back．It was then that I walked over to the couple and said, "Would you like to follow me to the 33 ?" A look of 34 crossed the woman's face． "I'm going right by there," I said, which wasn't a（ an） 35 since I had just made up my mind to do 36 that． I got in my car and began the journey back．I was trying to watch to be sure they were right 37 me．I took only fifteen minutes to get there as rush hour traffic was beginning to 38 ．I felt better than I had all day and my headache was 39 gone． Later, as I arrived home, my husband teased, "So you aren't ever late any more．" "Sometimes it's 40 to be late," I said, happy inside my heart．
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