A user states that they are trying to project their laptop to a screen for a presentation. They have plugged the projector cable into their laptop, and turned the projector on, but no signal is found. Which of the following should the technician perform FIRST?()
A. Ensure the projector is receiving power
B. Verify the laptop is not running on battery
C. Toggle the function key for displays
D. Replace the projector cable with another
第1题:
A.运行Windows轻松迁移并在Laptop1上运行测试
B.在Computer2上运行dsmigrate\\Laptop1\store/nocompress/p
C.在Computer2上运行loadstate\\Laptop1\store/nocompress
D.在Laptop1上运行scanstatec:\store/nocompress/p
第2题:
第3题:
基于本单元前一个作业【创建Screen类】,为Screen类增加一个私有函数,用于检测屏幕的宽与高是否符合逻辑
第4题:
第5题:
基于本单元的作业3,修改Screen类,添加析构函数;同时补充deleteInstance()函数,能够删除在createInstance()中创建的Screen对象;完成单例模式练习
第6题:
4、在JSP中要使用user包中的User类,则以下写法正确的是()。
A.<jsp:useBeam id=”user” class=”user” import=”user.*”/>
B.<jsp:useBean id=”user” class=”user.User” scope=”page”/>
C.<jsp:useBean class=”user.Use.class”/>
D.<jsp:useBean name=”user” class=”user.User”/>