单项选择题

Material choices such as timber and steel also help to keep the house cool, while light colours have been used on the exterior surfaces to ______ heat and blend in with the surrounds.

A．compel
B．repel
C．propel
D．expel
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单项选择题
They have vowed to protect the country's territorial ______ which is one of the bases for the country to develop relationships with other countries.
A．entirety
B．perfection
C．integrity
D．dignity
单项选择题
As an increasing number of traffic regulation schemes are devised, a ______ driver finds himself diverted and forced into one-way systems which cause even greater delays than the traffic jams they are supposed to prevent.
A．bewildered
B．embarrassed
C．hampered
D．diverted
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