单项选择题

The main function of the shell is ______.

A．to strengthen the pilings of the house
B．to give the house a better appearance
C．to protect the wooden frame of the house
D．to slow down the speed of the swelling water

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热门试题

单项选择题

Alter the tragedy mused by Hurricane Hugo, new houses built along South Carolina's shore line are required ______.

A．to be easily reinforced
B．to look smarter in design
C．to meet stricter building standards
D．to be designed in the shape of cubes

单项选择题

The award-winning beach house is quite strong because ______.

A．it is strengthened by steel rods
B．it is made of redwood
C．it is in the shape of a shell
D．it is built with timber and concrete