题目内容

How many international patents does China possess for building high-speed rail?

A. Over 1,000.
B. More than 900.
C. Around 1,200.
D. Around 800.

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A. It helps growing economy.
B. It helps forming fast transportation.
C. It helps developing local logistics.
D. All of the above.

A. market-oriented
B. government-oriented
C. law system-oriented
D. logistics-oriented

A. a vast number of workers
B. huge costs
C. local governments’ support
D. sources of tax income