单项选择题

Georges Valensi's patent lasted until 1971 because______.

A．nobody would offer and reward for his patent prior to that time
B．his patent could not be put to use for an unusually long time
C．the color TV receiver was not available until that time
D．there were not enough TV stations to provide color programmes

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热门试题

单项选择题

Procter & Gamble hopes to transplant foreign idea back to its home territory because

A．Americans are more likely to buy foreign made products than before
B．more foreigners are hired in its top management than before
C．foreign made products are superior to homemade ones in terms of quality
D．for most Americans foreign products are much more attractive than homemade ones

单项选择题

The author may most probably agree that______.

A．it is a trend that businesses today go global
B．businesses are very reluctant to go global
C．the market of the United States should not be that open
D．American businesses can make more money if they only sell homemade products