In the short run, when there is excess capacity in the economy, an unanticipated increase in the money supply will initially exert its primary impact on:（）

A. output and employment rather than on prices.

B. inflation, particularly if excess capacity is present.

C. interest rates because rising interest rates will stimulate additional savings.

肺容量叙述中，“是潮气量和补吸气量之和，是衡量最大通气储备的重要指标”属于（）

A.潮气量

B.残气量

C.深吸气量

D.补吸气量或吸气贮备

E.补呼气量或呼气贮备量