在固定管板式换热器中,用水蒸汽加热空气,水蒸汽走壳程,现欲强化传热,可采取的较为有效的措施是()
A. 壳程内加折流挡板
B. 加壳程隔板
C. 加管程隔板
D. 管外壁装翅片
查看答案
A:I’m so grateful that you can come to see me off.B:(26)A:(27) I’ve been in Sydney for a week.And I'm leaving for Melbourne.B:Yes.When are you going to leave Melbourne for home?A:On Thursday,but I won’t be home until Friday morning.B:(28)A:I don’t know.But I’m sure there will be new chances.B:Please come back to Sydney when you visit Australia again.A:(29) And please let me know if you are coming to China.B:Sure.We’ll miss you.A:Me,too.But I’ll keep in touch.B:(30)A:Thank you.Goodbye,Linda. 27()
A. I will.
B. It’s my pleasure.
C. Have a pleasant journey to Melbourne!
D. When are you going to visit Australia again?
E. How time flies!
能够用于鉴别SO2和CO2的溶液是()
A. 澄清石灰水
B. 品红溶液
C. 紫色石蕊试液
D. 氢氧化钡溶液
某企业采购原材料一批,取得增值税专用发票注明的价款10000元,增值税1700元,企业以银行存款支付10000元,余款暂欠,材料已验收入库,则下列()正确。
A. “原材料”与“应交税费”属于对应账户
B. “原材料”与“应付账款”属于对应账户
C. “原材料”与“银行存款”属于对应账户
D. “银行存款”与“应付账款”属于对应账户
关于永续盘存制,下列说法正确的有()
A. 便于加强会计监督
B. 工作简单,工作量少
C. 可随时结出账面余额
D. 可能发生账实不符情况