We had given ourselves so little time to get to the airport that it was______whether we should catch the plane.（）

单项选择题Susan had forgotten to take her identity card into the examination，but it was of no______since nobody asked to see it.（）

A．concern
B．weight
C．matter
D．seriousness

单项选择题科技在价值上可能是中立的。( )

单项选择题造福人类的要求,是由科学技术的( )决定的。

单项选择题人的心理活动的最高级形式是()。

单项选择题It was a very cold night and we stood______at the bus stop, waiting for the last bus.（）

A．shivering
B．trembling
C．shaking
D．vibrating