第3题: [单项选择]土的病变影响及木的称为() A. 相生 B. 相克 C. 相乘 D. 相侮 E. 母病及子 参考答案:D 答案解析:五行相克次序为:木克土、土克水、水克火、火克金、金克木,故1题的答案为B。火与金之间存在着相克关系,即"火克金"。火的病变影响及金,即是火克金太过,应称为相乘,故2题答案为C。木与土的关系是"木克土"
第21题: [单项选择]Which features of a centrifugal pump reduce the need for renewing worn impellers and pump casings?() A. Close radial clearance between impeller hub and casing B. Low rotational speed of impeller C. Removable end plate D. Replaceable impeller and casing wearing rings 参考答案:D