IgGFab段的功能是（） A.与抗原特异性结合 B.激活补体经典途径 C.通过胎盘

小题1:J_________ from CCTV were sent to the flooded areas to cover the events.

小题2:Anything you say may be taken down and used as e_________ against you in court.

小题3:As to traditional Chinese table manners, parents are the best persons to teach their children to

b_________ well in social occasions.

小题4:On a_________, we received ten junk e-mails every day.

小题5:This sofa o_________ too much room in the sitting room.

小题6:In his life he gave an example of _________ (勇敢) and wisdom.

小题7:After a long _________ (争论), we decided where to go for our holiday.

小题8:He was _________ (逮捕) in connection with the drugs last night.

小题9:Don’t be so _________ (敏感). I am just joking.

小题10: I hated it if I ever had to take __________ (口述) from him.

下列说法正确的是（    ）

A．苯与浓溴水反应（Fe作催化剂）制溴苯

B．向AlCl₃溶液中加入氨水得到白色沉淀

C．甲烷使酸性KMnO₄溶液褪色

D．SO₂能使品红溶液褪色，加热后不恢复原色

近十几年，云冈石窟前面的109国道上每天有数千辆运煤车隆隆驶过，使整个石窟景区煤尘飞扬。国家投资2.2亿元将109国道云冈段改线。由于新国道运煤专线比老国道远了四五万米，且坡度较大，不少驾驶员不愿走，许多大吨位散装运煤车依然行驶在已改为旅游专线的老国道上。

简评运煤车驾驶员这种行为在涉及个人利益与社会利益关系上的价值取向。

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吊运炽热金属或危险品的钢丝绳的报废断丝数，取一般起重机用钢丝绳报废断丝数的（）

A、40％

B、50％

C、70％

目前国家要求企业内部次级电能计量装置精度等级为（）级。