（）是学生健康成长的指导者和引路人，肩负着班级日常管理和德育工作的重要职责。
A.班长
B.校长
C.德育主任
D.班主任
参考答案：D
A majority of HDTV consumers could not enjoy high-quality digital pictures because ______.
A．they did not tune in to the right channel
B．they did not install the system
C．the market retailers created the confusion on purpose
D．the manufacturers did not have a uniform standard for their sets
工作环境有熏陶、激励、娱乐、辐射和信息增殖等功能。
