[填空题]BRIDGE ELECTRICAL
Telephone order
Item: 9. Belmont ______
Customer: 10. Ann ______
Model number: 11. ______
Delivery address: 12. 22 ______
13. on the ______
Delivery day: 14. ______
Today: 15. send a ______

[填空题]BRIDGE ELECTRICAL
Telephone order
Item: 9. Belmont ______
Customer: 10. Ann ______
Model number: 11. ______
Delivery address: 12. 22 ______
13. on the ______
Delivery day: 14. ______
Today: 15. send a ______

[填空题]BRIDGE ELECTRICAL
Telephone order
ltem: (9) Belmont ______
Customer: (10) Ann ______
Model number: (11) ______
Delivery address: (12) 22 ______
(13) on the ______
Delivery day: (14) ______
Today: (15) send a ______

[填空题]Telephone Etiquette
Proper Telephone Etiquette is more important than ever in today’s business environment. Much of our business communication takes place on the phone: in the office, at home, in the car, virtually anywhere. In this area, proper phone technique can make or break deals or relationships The following are some guidelines to help you use the phone as a powerful tool.
First is the greeting. When answering the phone for business, be sure to identify yourself (and your company, if applicable). (8) Thus, the other party does not think they have reached a wrong number.
Use proper phone etiquette from the start. You want to be sure to be polite to the gatekeepers i. e. secretaries, receptionists etc. that answer the phone for your business contacts, as they are the ones who have the power to put you through. They may sit outside the office, but they too have influence and power so a greeting such as "Good morning" is important. (9) S

[单项选择]以下是ORDER(订单)和LINE_ITEM表的结构：
ORDER
-------
ORDER_ID NUMBER(9)
CUSTOMER_ID NUMBER(9)
ORDER_DATE DATE
SHIP_DATE DATE
LINE_ITEM
-----------
LINE_ITEM_ID NUMBER(9)
ORDER_ID NUMBER(9)
PRODUCT_ID NUMBER(9)
QUANTITY NUMBER(5)
在LINE_ITEM表中的ORDER_ID列上有一个外键约束。该外键约束是指向ORDER表的，在如下有关完整性约束错误的陈述中，哪个是正确的
A. 为了向ORDER表中插入一条记录，必须向LINE_ITEM表中插入一条记录
B. 要修改ORDER表中的一条记录，主记录(Parent Record)必须已经存在于LINE_ITEM表中
C. 要从LINE_ITEM表中移除这个约束，必须删除ORDER表中所有的记录
D. 要删除ORDER表中的一条记录，必须删除LINE_ITEM表中的任何子记录(Child Record)