题目内容：
The process of nuclear fission __________ requires the use of a reactor core, around which no lithium blanket of sufficient __________ has been developed to contain the hazardous byproducts of the process.
参考答案：
答案解析：
单选题：The process of nuclear fission __________ requires the use o
- 题目分类：GRE
- 题目类型：单选题
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