单项选择题

When we add qualifications to a condition, we ______.

A．give higher quality to the condition
B．restrict and limit the condition
C．remove all restrictions on the condition
D．enlarge the applicability of the condition

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热门试题

单项选择题

Whether there is life beyond the earth is ______.

A．the only question that excites people
B．one of several questions which excite people
C．one of the most exciting questions
D．the question which most excites people

单项选择题

Life on the planet Jupiter is a possibility which ______.

A．does not exist
B．should not be ruled out
C．excites all scientists
D．has never been explored