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【单选题】
Nowadays NMET plays a very important role in the teaching and learning of middle school teachers and students. Such effect of the test on the teachers and students is called____.A.
validity
B.
authenticity
C.
impact
D.
backwash
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反馈参考答案：
举一反三
【简答题】是 20世纪德国的一个心理学流派,其代表人物是考夫卡和 .
【多选题】一般情况下，醛与水发生亲核加成的平衡反应不利于产物的形成，但是在特定情况下却很容易形成加成产物。你认为下列化合物中哪些化合物易发生与水的加成
A.
三氯乙醛
B.
氯乙醛
C.
三氟乙醛
D.
乙醛酸乙酯
【单选题】When the drawee refuses to pay, the bank has not submitted the documents, and the ownership of the goods is still owned by the principal. Which of the following is not the principal's treatment of the...
A.
find A new buyer at the place of import and dispose of the goods there
B.
Payment and delivery shall be made by the principal's reliable agent at the place of import
C.
send someone to the place of import to negotiate with the importer
D.
Entrusting the carrier to return the goods
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