患者男性,56岁,春天易出现喘憋,应用茶碱类药物后缓解,该患者禁止使用药物是
A.地高辛B.苯海拉明C.普萘洛尔D.氢氯噻嗪E.呋塞米
参考答案:C
Change the forms of the following sentences. 句型转换。
1. I eat vegetables three times a day.(对划线部分进行提问)
2. My favourite fruit is melon.(对划线部分进行提问)
3. I watch sports on TV.(变为一般将来时)
4. Do you often help your family ?(作出肯定回答)
5. Kim eats breakfast six times a week.(变为一般过去时)
当a=()时向量组α1=(3,1,2,12),α2=(-1,a,1,1),α3=(1,-1,0,2)线性相关
A.1
B.-1
C.-3
D.3