A — price start of
B — round-the-clock Business
C — installation and operation
D — electronic commerce
E — office automation
F — Quality first
G — national public servant
H — large capacity storage
I — Electronic Bulletin Board
J — current prices of stock
K — acknowledgement of order
L — financial management
M — commodity supply volume
N — international business law
O — TV signal coverage
P — refund your money
Q — special offer ______电视信号覆盖 ______安装与使用