In another institute study, 35% of U. S. employees said they had health care responsibilities during the last year. It can be ep

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问题 In another institute study, 35% of U. S. employees said they had health care responsibilities during the last year. It can be episodic, unpredictable and very______.

选项 A、stressing
B、stressed
C、stressful
D、stress

答案C

解析 与空格处并列单词“episodic,unpredictable”的词性都为形容词,据此可以推知空格处应填的单词形式为形容词。此处是说“它可能是偶发的、不可预测的并且压力很大的”,C项“stressful有压力的”正确。
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