Will the covariance of returns for two common stocks be negative if the actual returns on both stocks tend to be: Above their expected returns Below their expected returns at the same time at the same time （） A: No No B: No Yes C: Yes No

Joshua has entered sales returns of $100 on the credit side of the sales returns ledger account.Which of the following journals would correct this error? A: Debit Sales Returns $200 and Credit Suspense $200 B: Debit Suspense $200 and Credit Sales returns $200 C: Debit Sales returns $100 and Credit Suspense $100 D: Debit Suspense $100 and Credit Sales returns $100

"The law of diminishing returns is the same as the decreasing returns to scale." Do you agree? Explain.

The buildings were destroyed ____ the other night. A: on a split second B: at a split second C: in a split second

The covariance of the market"s returns with the stock"s returns is 0.007 and the standard deviation of the market"s returns is 0.15. What is the stock"s beta A: 0.23 B: 0.31 C: 0.57

把数组转换成字符串和把字符串分割成数组的方法分别是（） A: join，split B: json，split C: substr，split D: jion，split

执行以下代码,运行结果defsplit(s):returns.split("t")s="Happybirthdaytoyou!"print(split(s)) A: 运行出错 B: ["&quot","Happy&quot",null,"&quot","birthday&quot",null,"&quot","to&quot",null,"&quot","you!&quot"] C: ["Happybir","&nbsp","hday","&nbsp","oyou!"] D: ["Happy","&nbsp","bir","&nbsp","hday","&nbsp","o","&nbsp","you!"]

下面描述正确的是（多选 A: gzip压缩不支持split B: Lzo压缩后文件后缀名为.lzo,支持split C: Snappy压缩算不支持split D: Lz4压缩算法不支持split

短语split a cab

in a split second第二名