问题
单项选择题
适用于电机、压缩机等设备的基础是()。
A.框架式基础
B.绝热层基础
C.素混凝土基础
D.箱式基础
答案
参考答案：A
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适用于电机、压缩机等设备的基础是()。
A.框架式基础
B.绝热层基础
C.素混凝土基础
D.箱式基础
参考答案：A
| 35．Applications put computers to pratical business (1) , but below the (2) it’s the heart of an operating system—the kernel that provides the technical wizardry to juggle multiple program, connect to networks and store (3) . A traditional kernal provides all the functions for applications. The kemal (4) memory, I/O devices and parcels out processor time. The kernel also supports security and fault (5) , which is the ablity to recover automatically when parts of the system fail. |
(5)
A．ant
B．last
C．next
D．second