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问题 填空题

用所给单词的适当形式填空。

1. Sue _____  (be)a good student. 

2. What _____  (be) the girl's name? 

3. He  _____  (be)a boy. His name is Jack. 

4. Nice   _____ (meet) you.

5. Gina _____   (not be)in Class One, Grade Two.

答案

1. is 2. is 3. is 4. to meet 5. isn't

单项选择题 A型题

在高原上由于脂肪代谢障碍出现酮尿时，大量给予下列哪种物质后，酮尿即可消失（）

A.糖类

B.脂类

C.维生素类

D.无机盐类

E.蛋白质类
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单项选择题

The kernel is the (66) of an operating system such as Windows98, Windows NT, Mac OS or Unix. The kernel provides basic services for the other parts of the operating system, (67) it possible for it to run several programs at once (multitasking), read and write files and connect to networks and peripherals. Applications and utility programs use the services provided by the kernel to provide practical business functionality.

In operating systems such as Windows or most versions of Unix, the kernel (68) everything except application and utility programs.

In microkernel operating systems such as Digital Unix and Apples forthcoming Mac OS Server, the kernel (69) supports only multitasking and memory management. Other services such as applications, utilities and the user interface support device drivers, API and graphics which all (70) outside the microkernel.

（66）处填（）。

A．nucleus

B．center

C．core

D．heart
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