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问题 问答题

某岩块测得点载荷强度指数Ιs（50）=2.8MN/m2，试按《工程岩体分级标准》（GB50218—94）推荐的公式计算岩石的单轴饱和抗压强度。

答案

参考答案：

根据《工程岩体分级标准》(GB 50218-94)第3.4.1条，岩石单轴饱和抗压强度

单项选择题

The "main storage" normally means that part of internal storage into which instructions and other data must be loaded for subsequent execution or processing. In large computing systems, the term "main storage" is (71) to "memory". "Buffer" mainly indicates a special-purpose storage or storage area allowing, through (72) storage, the data transfer between two functional units having different transfer characteristics. A buffer storage is used between non-synchronized devices or where one is (73) and the other is parallel or between those having different trans far rates. " (74) (memory)" is also a special-purpose buffer storage, smaller and faster than main storage, used to hold a copy of instructions and data obtained from main storage and likely to be needed next by the processor. "Register" is commonly composed of a part of internal storage having a specified storage (75) and usually intended for a specific purpose.

（75）是（）

A.volume

B.space

C.capacity

D.size
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单项选择题

铁路粘油槽车卸油加热约20min左右，关闭（），使加热蒸汽全部进入加热管路，以保证罐内介质加热效果。

A.排油阀

B.冷凝水阀

C.内螺纹球阀

D.外螺纹球阀
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