【多选题】计算营业利润时,应在营业收入基础上扣除的项目有( )。
【单选题】–I called you yesterday afternoon, but you were not at home. --Sorry, I _________ some shopping with my mother then .
【单选题】正确描述创建一个段落的句法是______。
C.
<PR>Paragraph Text</PR>
D.
<PRG>Paragraph Text</PRG>
【单选题】钨极氩弧焊采用小电流焊接时,电弧的静特性曲线在U形曲线的 。
【单选题】— I called you at six yesterday, but there was ______ answer. — Did you? I ______ dinner at my friend's home. [ ]
【多选题】计算营业利润时,应在营业收入基础上扣除的项目有( )。