function as sth.，起...的作用，作为，充当
function as teeth --> they work as an acceptable substitute for teeth
function as teeth do --> they work in the same way as teeth do - same mechanics, same action, etc. this is not what is meant.
B选项：划线部分身后的同位语从句that the bank's loans will help foreign producers compete with American businesses应该修饰的对象是concern，即，是担心贷款帮助了外国的商业。因此，该同位语从句应直接放在concern身后，不能放在passage身后。
The alternative to constructivism, in other words, is to view technology as existing outside society, capable of directly influencing skills and work organization.
错选E： technology can be a primary determinant of social and managerial organization. Clark believes this possibility has been obscured by the recent sociological fashion,
是决定social and managerial organization，不是business
选项B (the former chair of the planning board and a board member),Joan Philkill attended more than 400 meetings and reviewed more than 700 rezoning applications. 前面的括号中成分变成主语，一个句子对个主语，错误;
同理排除C
选项D 两个完整句子没有连接词错误
选项E 正确 As （the chair of the planning board） for 18 consecutive years and （a board member） for 28 years，Joan Philkill attended more than 400 meetings and reviewed more than 700 rezoning applications.
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function as sth.，起...的作用，作为，充当
function as teeth --> they work as an acceptable substitute for teeth
function as teeth do --> they work in the same way as teeth do - same mechanics, same action, etc. this is not what is meant.