下面IF函数的格式正确的是()
A. =IF(SUM(B5)<60,"补考","")
B. =IF(SUM(B5)<60,补考,"")
C. IF(SUM(B5)<60,补考,"")
D. =IF(SUM(B5)<60,"补考","")
You: 1 (引起对方注意。). Are you Mr. Smith?Mr. Smith: Oh, yes. Simon Smith. Are you a newcomer?You: 2 oh,yes.______________________________(表示肯定。问好。说你叫李颖。) . I’m a graduate from Binhai College. My major is marketing.Mr. Smith: Very good. 3 (表示欢迎。).You:I’m happy to work here. I know 4 (表示知道对方的身份。).Mr. Smith: And you may also know I’m a lover of Chinese food! 5 (给对方名片。).You:6 (表示感谢。). I don’t have mine yet, but you could have my e-mail address and WeChat ID.Mr. Smith: That’s fine. Let me take them down in my cell phone.
若让元素1,2,3,4,5依次进栈,则出栈次序不可能出现( )的情况。
A. 5,4,3,2,1
B. 2,1,5,4,3
C. 4,3,1,2,5
D. 2,3,5,4,1