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SIG板有（）个时隙可以由用户录音，每个时隙最长可录（）秒。

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使用磁性套索工具时，在托拽鼠标的过程中自动捕捉图像中物体的边缘以形成选区。

A. 正确
B. 错误

Accounting is More Than Numbers Accounting could date back to about 7,000 years ago. People of that time relied on old accounting methods to record the growth of crops and herds. Accounting has greatly developed with the growth of joints tock companies . When you think of accounting， you may find pages of tables and numbers. That image doesn’t usually give you too much excitement. When you have your ownbusiness， though， those numbers come to mean the world to you because they give you the record of how much money you’ve earned or lost. Actually， accounting is not simply about strange dollar amounts or boring numbers； they’re your sales figures， your costs， and your profits. In other words， accounting is alanguage of business. Once you know how to work with those numbers， how to read those numbers and how to read the story they tell， you will be able to manage your business toward greater success. Accounting is very important in your business because it shows（）.

A. how much money you’ve earned or lost
B. pages full of tables and numbers
C. strange dollar amounts or boring number

EDI的国际标准是（）。

A. TDCC；
B. TDI；
C. UN/EDIFACT；
D. GTDI

人们常用什么来进行人工降雨？