A．smashB．degradeC．diminishD．accelerateSteady rates woul……

单项选择题______ swept through the swimmers as they caught sight of a huge shark approaching menacingly.

单项选择题______ there's a good reason for her absence, as she doesn't usually stay away from work.

单项选择题He spends about 10 days each month back in Hong Kong, ______ projects in the works at his production company.

单项选择题It is sometimes difficult to discuss medical issues in a way that is not ______ to ordinary people.

单项选择题Another way to judge whether your home has or could develop indoor air problems is to potential sources of indoor air pollution.