—Why didn’t you come to my birthday party yesterday?—()
A.Excuse me, my friend sent me a flower.
B.Fine, I never go to birthday parties.
C.Ha…ha, I don’t like birthday parties.
D.Sorry, but my wife had a car accident.
A.B点的高程为417.460m
B.B点的高程为417.469m
C.往、返测高差闭合差为0.014m
D.B点的高程为417.467m
E.往、返测高差闭合差为-0.004m
有关客房服务用语的中英文对照,错误的是()
A.I WANT TO PAY MY BILL NOW 我想开发票
B.,MAY I HAVE A LOOK AT YOUR CARD 我可以看一下您的房卡吗?
C.PLEASE GO DOWN TO THE LABBY HERE 请在这里下去大堂
D.THE ENTENSIM NUMBER OF LAUNDTY SERVICE IS 7 洗衣服的客房号码是7
A.pH=pKa时, [HA]= [ A-]
B.pKa即是弱酸或弱碱性药液50%解离时的pH值,每个药都有固定的pKa
C.pH的微小变化对药物解离度影响不大
D.pKa大于 7.5的弱酸性药在胃肠道pH范围内基本都是非离子型
E.pKa小于4的弱碱性药在胃肠道pH范围内基本都是非离子型