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【简答题】
正整数集合 的最小元素为 ，最大元素为 ，并且各元素可以从小到大排成一个公差为 的等差数列，则并集 中的元素个数为（ ）． 、 、 ； 、 ； 、 .
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【简答题】患者，女，岁，体重56kg。既往有糖尿病和慢性支气管炎病史20余年，一直口服降糖药。术前继续服用长效降糖药后，在气管内全麻下行腹腔镜下胆囊切除术。术用芬太尼0.2mg，术毕患者清醒，拔除气管导管，面罩吸氧，50分钟后患者再次入睡，呼之不应，血压增高，心率增快，呼吸浅慢不规则，SPO285%，瞳孔等大，对光反射正常。 患者再次昏迷的可能原因是（）A.呼吸性碱中毒 B.低血糖 C.二氧化碳蓄积...
【单选题】听力原文：W: I hear that your sister Catherine was a great student. M: She is. She hasn't graduated yet. Q: What does the man think of Catherine? (16)
A.
She has finished her school.
B.
She is not a good student before.
C.
She hasn't finished her final paper.
D.
She's still a student.
【单选题】听力原文：W: I hear that your sister Catherine was a great student. M: She is. She hasn't graduated yet. Q: What does the man think of Catherine? (16)
A.
She has finished her school.
B.
She hasn't finished her final paper.
C.
She is not a good student before.
D.
She's still a student.
【单选题】— She is not a student. — He is not a student,______.
A.
too
B.
also
C.
still
D.
either
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