Increasing the speed of a centrifugal pump will result in an increase in its capacity in its capacityAnother means of increasing the capacity pump is to increase the()
A. diameter of the discharge piping, with all other factors remaining the same
B. diameter of the suction piping, with all other factors remaining the same
C. width of the impeller only
D. diameter of the impeller
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证券公司自营业务内部控制,下列说法正确的是()。 I.建立自营业务的隔日盯市制度 II.健全自营业务风险敞口和公司整体损益情况的联动分析与监控机制 III.完善风险监控量化指标体系 IV.定期对自营业务投资组合的市值变化及其对公司以净资本为核心的风险监控指标的潜在影响进行敏感性分析和压力测试
A. IIIV
B. IIIIV
C. IIV
D. IIIIV