皮皮学，免费搜题
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【简答题】
Ig 的 段与抗原结合, 段决定Ig免疫原性。
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皮皮学刷刷变学霸
举一反三
【单选题】某夫妇喜欢植树种花，绿化小区的环境，邻里因此也不用再花钱请人绿化小区，这是属于（ ）。
A.
消费的外部不经济
B.
生产的外部不经济
C.
消费的外部经济
D.
生产的外部经济
【单选题】Where does your garbage end up? All the garbage that you don't reuse or find a way to recycle goes into landfill sites or it gets burned. Neither of these disposal methods is ideal. The Unites States ...
A.
They are big holes in cities and towns.
B.
They are big holes in the earth.
C.
They are big holes in the earth in cities and towns.
D.
They are big holes, often just outside cities and towns.
【简答题】accomplish ambition ideal individual obstacle dominate release seemingly solution vi...
【多选题】When children are home-schooled in the United States, they spend days working on state-approved learning activities at home with a parent. They may meet with a teacher once a week or more. Although ho...
A.
The parents are able to teach whatever they think is important.
B.
Schools may be too remote or inaccessible for the children.
C.
The parents may be critical of goverment-funded educational methods and results.
D.
Children may learn more if they are allowed to be more autonomous.
E.
The parents may value spending recreational time with their children at home.
F.
The parents may want their children to be in charge of all learning activites.
【简答题】D It is the ideal way for travellers to ensure they wake up with the perfect view - a portable Ecocapsule that can be set up anywhere in the world.The innovative, eggshaped pods ensure travellers can...
【简答题】If ambition is to be well regarded, the rewards of ambition—wealth, distinction, control over one's destiny—must be deemed worthy of the sacrifices made on ambition's behalf. If the tradition of ambit...
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