【单选题】下列实验操作与预期实验目的或所得实验结论一致的是( ) 选项 实验操作 实验目的或结论
A.
向AlCl 3 溶液中加入过量的氨水,过滤,洗涤,干燥,加热灼烧 制取Al(OH) 3
B.
将浓硫酸与碳混合加热,生成的气体通入足量的澄清石灰水 检验气体产物中的CO 2
C.
NaHCO 3 溶液与NaAlO 2 溶液混合产生白色沉淀 酸性:HCO 3 - > Al(OH) 3
D.
将SO 2 通入品红溶液中,品红溶液褪色,加热褪色后的品红溶液,溶液恢复红色 验证亚硫酸的不稳定性
【单选题】给于无乳糖和半乳糖饮食可控制和治疗哪种类型的白内障( )
【单选题】Which of the following is not considered one of the key areas of the front office operation? ( )
E.
All of the above are key areas of the front office operation
【单选题】Where should staff leave office cars?
A.
In front of the office.
B.
At the back of the building.
【单选题】给于无乳糖和半乳糖饮食可控制和治疗哪种类型的白内障
【单选题】There is a post office front of the bank. [ ]
【单选题】— Where is the post office? — It’s _____ the hospital.
【单选题】What is the difference between front and back office systems?
A.
Front office systems are external systems; back office systems are internal.
B.
Front office systems are Web based; back office systems are built on database systems.
C.
Front office systems process information in the beginning of a customer's transaction; back office systems process information at the end of the customer's transaction.
D.
Front office systems focus on getting the sale; back office systems focus on follow-up.
【单选题】Front office employees communicate ______ themselves by using a front office ______.
【简答题】Enter a typical high school, and the first thing you see is the front office, where the principal dwells and grades are stored. The front office also reinforces familiar hierarchy(等级制度): principal at ...