问题
解答题
|
答案
| 32×21≈600 | 26×17≈600 | 19×47≈1000 | 58×23≈1200 |
| 217÷5≈40 | 381÷4≈100 | 405÷8≈50 | 181÷2≈90 |
搜题请搜索小程序“爱下问搜题”
|
| 32×21≈600 | 26×17≈600 | 19×47≈1000 | 58×23≈1200 |
| 217÷5≈40 | 381÷4≈100 | 405÷8≈50 | 181÷2≈90 |
| 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. |
(4)
A．earlier
B．front
C．later
D．backward
