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【判断题】
基于有效保护率的考虑,各国的关税结构通常是从初级产品、半制成品到成品,随加工程度的深化,税率不断下降。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【简答题】泌尿系统包括______、______、______、______四部分．
【简答题】肾脏是泌尿系统的主要器官，它包括_______和_______。
【简答题】人体的泌尿系统由______、______、膀胱______组成．______是泌尿系统的主要器官．尿液的形成主要包括______、______、两个过程．
【单选题】. In those days, the old woman __________ sit at the door for hours, waiting for her son to return from abroad.
A.
should
B.
used to
C.
might
D.
would
【单选题】Which of the following is true?
A.
A-2-year-old doesn't know how to express his anger and frustration.
B.
A 2-year-old often intentionally harms himself or others.
C.
A 2-year old depends on his parents to do everything new and challenging.
D.
A 2-year-old trusts his parents more than other people.
【简答题】人体泌尿系统包括() A肾 B输尿管 C膀胱 D尿道
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