[单选题]如果要求任一组母线发生短路故障均不会影响各支路供电，则应选用(____)。
A.双母线接线
B.双母线分段带旁路接线
C.多角形接线
D.二分之三接线

[填空题]Ringtones (手机铃音) are melodic (有旋律的) sounds a cell phone makes when an incoming call or message arrives. Since cellular phones are significantly more sophisticated than landline phones, ringtones can be (47) to suit the owner’s personal taste.
There are (48) two different types of ringtones: monophonic ringtones and polyphonic ringtones. Polyphonic ringtones are more musical than a monophonic ringtone. It is likely that future cellphones will be (49) of producing musical ringtones of CD quality. There are a number of websites that offer ringtones, pictures or even games to (50) . onto your cellphone. The websites vary in that some allow you to (51) specific ringtones while others offer subscriptions (订阅) that allow you to download an unlimited number of ringtones. When you (52) a ringtone, make sure that it will work with your cellular phone model and that the site is respectful of the art

[单项选择]患者在使用头孢菌素期间不要饮酒是因为容易引起（）
A. 肾功能不全
B. 二重感染
C. 消化道溃疡
D. 双硫仑样反应
E. 凝血障碍

[单选题]建国初期,我国建立社会主义性质的国营经济的最主要途径和手段是（ ）。
A.没收帝国主义在华企业
B.没收官僚资本企业
C.没收民族资产阶级的财产
D.收购企业

[单选题]中软触摸屏调度台主机有（ ）个USB接口。
A.1
B.2
C.3
D.4

[单项选择]发生在江河湖泊的水体营养化是（）。
A. 水华
B. 赤潮
C. 潮吸

[多项选择]从用户服务功能角度看，智能建筑可提供三大方面的服务功能，即（）。
A. 综合管理功能
B. 安全功能
C. 舒适功能
D. 便利高效功能

[简答题]{{B}}Task 3{{/B}}
The following is about Hong Kong Book Fair. After reading it, you should complete the information by filling in the blanks marked 46 through 50 (in no more than 3 words) in the table below.