问题
填空题
采用喷嘴调节的多级汽轮机，其第一级进汽面积随（）变化而变化，因此通常称第一级为（）。
答案
参考答案：负荷、调节级
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采用喷嘴调节的多级汽轮机，其第一级进汽面积随（）变化而变化，因此通常称第一级为（）。
参考答案：负荷、调节级
| 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. |
(1)
A．used
B．use
C．apply
D．applied