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问题 单项选择题

Swing构件的程序不具有( )。

A．本地代码

B．标签

C．菜单

D．容器

答案

参考答案：A

解析： Swing是由纯Java实现的轻量级构件，没有本地代码，不依赖操作系统的支持，这是它与AWT构件的最大的区别。

单项选择题

One study conducted by a psychologist (121) of interviewing workers before and after the installation of a robot. The robot was used to control a matching process of stamping and assembling metal parts. Prior to installation, much of the work done by skilled machinists. After installation, the robot did the work, but the workers controlled the robot through the robot through a control panel. The results of the study indicated that the workers praised the robot (122) eliminating the physical labor and fatigue (123) the manual operation, but complained of more and continued stress. Prior to installation of the robot, there was time for talking or short periods of relaxation between jobs. Now, however, because of the speed of the robot, there was a need for constant scanning and monitoring of the operation (124) performed by the robot has the installation of the robot created a better work environment Has the change from physical labor to mental stress resulted in an improved (125) of life Much additional research is necessary.

（121）是（）

A.Of

B.consisted

C.for

D.being
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单项选择题

不可能造成伙食冰机起停频繁的是：（）。

A.制冷剂不足

B.“冰塞”

C.蒸发器结霜严重

D.“奔油”
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