题目内容：
83.
A．essential B．primitive
C．prior
D．major
参考答案：
答案解析：
单选题：83.
- 题目分类：英语四级
- 题目类型：单选题
- 查看权限：VIP
B．primitive
C．prior
D．major
B．primitive
C．prior
D．major
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请在（39）处填上最佳答案。
29.
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