为了开采一个台阶并将采出的矿岩运出采场,需要在本台阶及其上部各台阶修筑至少一条具有一定坡度的运输通道,称为()或()。
参考答案:斜坡道;出入沟
我国急性胰腺炎的最常见病因为
A.胆道疾病B.手术创伤C.高钙血症D.并发于流行性腮腺炎E.大量饮酒和暴饮暴食
An instruction that uses indirect addressing must contain an address of memory where
A.data is stored
B.a pipeline stall will be executed
C.a page fault is addressed
D.another address is stored