问题: The foreign research scholar usually isolates in t
The foreign research scholar usually isolates in the laboratory as a means of protection as a means of protection
A him B. himself C oneself D one
解答:
选B
The foreign research scholar usually isolates himself in the laboratory as a means of protection .
国外的学者通常把自己孤立在实验室里作为一种保护。
himself 这里指代The foreign research scholar自己。A指代不明，C和D是泛指
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