皮皮学，免费搜题
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【判断题】
企业为了提高消费者剩余,唯一的做法就是降低生产者剩余。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】This course prepares non-native speakers for the internationally recognized First Certificate in English. Syllabus(课程大纲) Speaking skills are taught as part of an integrated approach. Special emphasis ...
【单选题】光敏剂是指能将吸收的光能传递给对光不敏感的反应物，使其发生反应，而自身在反应前后________的一类物质。
A.
不发生变化
B.
发生变化
C.
数量增加
D.
数量减少
【单选题】What responsibilities do states have concerning education?
A.
They must decide what certificate teachers should have.
B.
They must pick out the suitable textbooks for students.
C.
They must make sure every child can receive education.
D.
They must provide enough funds for their schools.
【单选题】听力原文：To open a current account, you will need to show your passport and birth certificate and to provide your address in the United Kingdom． What is the profession of the speaker?
A.
A teller.
B.
An economist.
C.
A travel agent.
D.
A customs official.
【简答题】定量分析化学按照取样量或组分含量多少可分为 , , , 。
【单选题】“产地证书；熏蒸证书”正确的翻译为( )。
A.
Certificate of Origin; Certificate of Fumigation
B.
Certificate of Fumigation; Certificate of Origin
C.
Certificate of quality; Certificate of Origin
D.
Certificate of Origin; Certificate of Quality
【单选题】What course does the man think about taking for further study?
A.
English Technical Certificate
B.
Computer Certificate
C.
Chemistry Certificate
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