当需要修改多段线的线段宽度时，可以直接双击该多段线来启动编辑。

When employees are dissatisfied with work, they often c...

单项选择题When employees are dissatisfied with work, they often complain about motivational factors such as company policies, relationships, working conditions and so on.

黄金具有吸收汞的特性，所以一遇汞便呈现白色外观。 A、正确 B、错误

单项选择题黄金具有吸收汞的特性，所以一遇汞便呈现白色外观。
A、正确
B、错误

的值与积分变量有关正确错误

单项选择题的值与积分变量有关
正确
错误