在起飞中飞行员可以中断起飞并将飞机停止在加速停止距离内的最大速度是什么？

在公司的发票查询打印规范中，每月可为客户补打（）次话费发票。

A.1

B.2

C.3

简述MTU发动机不起动或起动后马上停止的原因？

0.5，2，4.5，8，（）。

A．12.5

B．

C．14

D．16

试比较赤芍与丹皮、羚羊角与石决明功能主治的异同。

Applications put computers to practical business (67) , but below the (68) it’s the heart of an operating system-the kernel-that provides the technical wizardry to juggle multiple program, connect to networks and store (69) .
A traditional kernel provides all the functions for applications. The kernel (70) memory, I/0 devices and parcels out processor time.
The kernel also supports security and fault (71) , which is the ability to recover automatically when parts of the system fail.

A．manages

B．manage

C．managed

D．managing