单项选择题

The author says that old family firms ______.

A．were mined by the younger generations
B．failed for lack of individual initiative
C．lacked efficiency compared with modern companies
D．were able to supply adequate services to taxpayers

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单项选择题

It can be inferred from the passage that the Treasury Department, after assuming control of the lighthouse, improved which of the following

A．The training of the lighthouse keepers.
B．The sturdiness of the lighthouses.
C．The visibility of the lights.
D．The locations of the lighthouses.

单项选择题

According to the passage, where can the tallest brick lighthouse in the United States be found

A．Little Brewster Island.
B．The Florida Keys.
C．Cape Hatteras.
D．Cape Cod.