他们两个是mutually exlusive 说明交集是空集啊，p（A and B）是交集，所以是空集
错误 IF 是 Excel 中最通用且最常用的一个函数,通常在单个公式中多次使用,还可与其他函数结合使用。 遗憾的是,由于构建 IF 语句较为复杂,因此很容易出现 #VALUE! 错误。 通常可通过在公式中添加专用于处理错误的特定函数(如 ISERROR、ISERR 或 IFERROR)来防止出现...
Creating the future you want is a lot easier if you are ready to exploit the opportunities that come your way. 出自-2017年6月阅读原文 But I know if you don't grow, you stand still, and that doesn't work for me. 出自-2017年6月阅读原文 Although these numbers appear low, it is much...
1.If a and b are integers,10Ä3=1,152Ä7=3,and then 379Ä6 is equal to___.2.Two numbers are in the ratio 2 :3.When 4 is added to each number the ratio changes to 5 :7.The sum of the two original numbers is___.3.The greatest number of Mondays which can occur in 45...
If A(-2,-1)and B(4, 3) are the endpoints of the base of an isosceles triangle, give the equation, in slope-intercept form, of the line containing the third vertex of the triangle. 相关知识点: 试题来源: 解析 http://gallery.fbcontent.cn/latex?decode=false&latex=%24%24y%...
int a,b,c; scanf(“%d”,&a);//输入a if(a==0) //如果a等于0,进入, { printf(“welcome here\n”); scanf(“%d”,&b); //输入b if(b==5) //判断b是不是等于5,如果等于,输出you intput is 5,该函数体结束 { printf(“you intput is 5\n”); ...
3.What is the first thing you should do when you want taelvee ahpnoblemshould do is to find someone you trust to talk to. 4.Why can our parents give us good advice abpetaoue they have more eppeblem and are always there to help us. Fill in the blanks with the 2d phrases in the...
Ensifentrine是一款潜在“first-in-class”磷酸二酯酶3/4(PDE3/4)抑制剂,双重抑制机理使其能够凭借单个化合物同时实现支气管扩张和抗炎效果。目前正在美国上市审查中,如果获批,它可能成为10多年来治疗慢阻肺(COPD)的首款新机制疗法。预计将在6月做出...
A.How to learn English well.B.How to buy a good dictionary.C.How to use the dictionary.D.How to find the letters in the dictionary.答案(1)细节理解题。根据第一段和第二段When you are reading something in English,you may often meet a new word.What's the best ...
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