It can be inferred from the fourth paragraph that______.
A. 99-cent CDs have greatly boosted the sales volume of music companies
B. free downloading of music still serves as a big threat to music companies' profits
C. iTunes and Napster 2 are both very profitable music companies in the US
D. big music companies will reach an agreement with ffie-sharing companies
【B13】
A. questioned
B. inquired
C. interviewed
D. interrogate
Which of the following is true according to Paragraph 3？
A. US already has 3 satellite channels in use: C/A, Y-channel and M-code.
B. Galileo will have 5 more different channels.
C. The American C/A is different from the EU's PRS in function.
D. The American GPS has more commercial usage than Galileo.
下列关于权责发生制原则，表述不正确的是()。
A. 凡是当期已经实现的收入，不论款项是否收付，都应当作为当期的收入
B. 凡是不属于当期的费用，只有款项已在当期收付时，才能作为当期的费用
C. 凡是不属于当期的收入，即使款项已在当期收付，也不应当作为当期的收入
D. 凡是当期已经发生或应当负担的费用，不论款项是否收付，都应当作为当期的费用
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