同志们,1、It si difficuit for us to learn in life_____we've actually had that lesson.A.when B.after C.since D.until2、They will won't konw which facts to _____from the great amount of information in the book.A.decide B.choose C.find D.prefer3、

同志们,1、It si difficuit for us to learn in life_____we've actually had that lesson.A.when B.after C.since D.until2、They will won't konw which facts to _____from the great amount of information in the book.A.decide B.choose C.find D.prefer3、 同志们, 同志们, 同志们? 同志们, 同志们 同志们, 1+1=?同志们,帮个忙呗. SI si 1mol晶体硅有几摩尔Si—Si? 1mol sic中si c个数si-c键 1mol晶体Si含几molSi-Si键 SI单位为1是什么意思 1mol的Si里有多少Si-Si键,1mol的SiO2里有多少Si-O键? 1mol Si中含有几摩尔Si-Si键 为什么?结构图是怎样的? MOV AX,468AH MOV SI,1357H MOV [SI],AX MOV CL,4 SHR BYTE PTR[SI],CL SHL WORD PTR[SI],1 MOV AX,[SI] Your room is si dirty.You must____ it clean.