统计指标按其反映现象的数量特点不同分为（）
A、数量指标和质量指标
B、时期指标和时点指标
C、实物指标和价值指标
D、评价指标和预警指标
参考答案：A
Was it in the beautiful park ______was located by the sea _____ you first met your new English teacher? [ ]
A. where; that
B. which; which
C. that; that
D. which; where
总风缸的压力空气经过减压阀降至（），进入控制风缸储备。
A、650KPA
B、550KPA
C、500KPA
D、600KPA
