膝关节浮髌试验阳性见于A．骨关节炎 B．膝关节结核 C．化脓性膝关节炎 D．髌骨骨折

某企业2011年年末进行财产清查，查明存在的情况有：
(1)甲种原材料账面结存1500千克，每千克成本为6元，实际结存1570千克，经查属于收发计量不准确造成，经批准予以处理。
(2)乙种原材料账面结存2100千克，每千克成本为10元，实际结存2000千克，经查属于保管员赵某的责任事故，经批准应由赵某赔偿。增值税额按照材料成本的17%计算。
(3)发现盘亏生产设备一台，其原始价值为10000元，已提折旧6500元，经批准作损失处理。
(4)发现盘盈管理用设备一台，其重置成本为15000元，估计其价值已损耗6000元。

财产清查中发现的财产物资的盘盈盘亏，应通过( )账户核算。

A．长期应付款

B．长期待摊费用

C．待处理财产损溢

D．以前年度损益调整

设函数f（x）=ax³+bx²+cx+2的导函数为f′（x），若f′（x）为奇函数，则有（　　）

A．a≠0，c=0

B．b=0

C．a=0，c≠0

D．a²+c²=0

监理工程师对结构物混凝土体积进行计量，应以( )为准。

A．合同图纸净尺寸

B．现场实际测量尺寸

C．与业主协商确定

D．与承包人共同确认

A total of 4.6 million digital televisions have been sold, and the sales of HDTV sets have quadrupled since last year. Consumers have bought HDTVs to play their DVDs and to have clearer pictures and wide screens. Only a small percentage of the people who have purchased HDTVs, however, have actually ^hooked their TVs up# to receive high-definition television digital signals. Perhaps television viewers are having trouble keeping up with the changes in technology. Even the manufacturers of HDTVs, like Mitsubishi, Thomson Multimedia, Sony, and Samsung seem to have a tough time learning how to make their sets work with the various digital TV formats because little standardization has been required or implemented in the industry.Some of the HDTVs weigh over 200 lbs., and a variety of retailers offer a delivery service to the buyer’’s home to help install the heavy sets. This is known as a white-glove service and usually comes with an extra fee. After HDTV purchasers get their sets home and hook them up, they will still need to work to get the digital signals to their systems. Most of the industry’’s cable providers do not yet offer high-definition programing, and only about 15% of commercial television stations have switched over to even the lowest improved digital pictures. Worse yet, viewers may need to install antenna before they can even get the digital signals to their new HDTV sets. Another frustration for home-theater seekers is that the current HDTV sets allow owners only to watch high-definition programs, not to record them.

Hook up as in "hooked their TVs up" in Paragraph 1 most probably means to________.

A．have a hood over the TV

B．be connected to

C．relate oneself to

D．keep contact with

职业健康监护哪两部分？