影响纸张吸墨性的因素
参考答案:
纸张纤维表面的光滑程度,填料的质量,造纸过程中胶料的施加量,印刷机的压力、压印时间的长短,油墨粘度,纸张的本身构造。
— We _____ that you would fix the TV set this week.
— I’m sorry. I __ to, but I’ve been too busy.
A.had expected; had intended
B.are expecting; had intended
C.expect; intend
D.expected; intend
做血气分析时,如血标本中混入气泡,可使PO2值(),PCO2值。