问题标题：
【高中英语题withacomputer____eachclassroom,thestudentscansurftheinternetconveniently.a.havinginstalledb.installedc.equippedd.equippingwhentheyfirstarrivedin____afamoustouristcity,itwasonlyasmalltown.a.whatitisnowb.what】
问题描述：
高中英语题
withacomputer____eachclassroom,thestudentscansurftheinternetconveniently.
a.havinginstalled
b.installed
c.equipped
d.equipping
whentheyfirstarrivedin____afamoustouristcity,itwasonlyasmalltown.
a.whatitisnow
b.whatisnow
c.whichnowis
d.nowis
答案分别为DB
为什么呢?其他选项为何不可呢?
刘韬回答：
第一题：equipping表示给教室配备电脑,如果用equipped应为equippedwith而且主语应该是computer
第二题：what引导的句子作介词in的宾语,what在句子中做主语.which通常用于定语从句中做主语或宾语
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