一个质数与比它小的任何自然数都是互质数.______.
因为:一个质数与比它小的任何自然数的公约数只有1,
所以:一个质数与比它小的任何自然数都是互质数.
故答案为:正确.
阅读下面的短文,在标有序号的空白处填入一个适当的词,或填入括号中动词的适当形式。
It seems 小题1: that at my age I am still fit enough to cycle 20 kilometers in an afternoon. I think my long and active life must be 小题2: to the healthy life I live. I know how easy it is to start smoking and how 小题3: it is to stop. During adolescence, I also became 小题4: to cigarettes. When l was young, I didn't know that it could do 小题5: to my heart and lungs. 小题6: did I know that my cigarette smoke could affect the health of non-smokers. However, what I 小题7: (do) know was that my girlfriend thought I smelt terrible and that she wouldn't go out with me again unless I stopped. 1 also noticed that I became breathless quickly. Then I knew 小题8: was time to quit smoking. I'm sending you some advice to help you 小题9:your resolve. Every time you feel like 小题10:(smoke), remind yourself that you are a non-smoker. Keep trying, and you will succeed.
按照基础工具的种类划分,下列哪一项不属于金融衍生工具的范围()
A.期货衍生工具
B.股权衍生工具
C.货币衍生工具
D.利率衍生工具