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【简答题】
阅读理解 Boys and Girls, lets begin our English class now. This time I want to talk about my family. Then I want you to say something about your family. There are seven people in my family. They are my parents, my two sisters, my two sisters, my brother, his wife and I. In England, a family like this is a big one. My father has a factory. It isnt very big. It makes all kinds of boats. My brother is a doctor. He works in a hospital. His wife works a hospital, too. She is a nurse. My two sisters are students. One wants to be a teacher. She studies hard and well. The other likes singing very much and can sing very well. So she wants to be a singer. Im now in china teaching English and learning Chinese. My mother stays at home. Can you guess what she does at home? Yes, She does housework. She is a housewife.
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【单选题】药物的鉴别试验可以用来证明已知药物的 ( )
A.
真伪
B.
优劣
C.
纯度
D.
品质
E.
产地
【判断题】无线传播模型是一种通过理论研究,与实际测试的方法,归纳出的数学公式
A.
正确
B.
错误
【简答题】已知椭圆 x 2 a 2 + y 2 b 2 =1(a>b>0)和圆O:x 2 +y 2 =b 2 ,过椭圆上一点P引圆O的两条切线,切点分别为A,B.若∠APB=90°,则椭圆离心率e的取值范围是______.
【简答题】已知双曲线C: (a>b>0)和圆O:x 2 +y 2 =b 2 (其中原点O为圆心),过双曲线C上一点P(x 0 ,y 0 )引圆O的两条切线,切点分别为A,B。 (1)若双曲线C上存在点P,使得∠APB=90°,求双曲线离心率e的取值范围; (2)求直线AB的方程; (3)求三角形OAB面积的最大值。
【单选题】[专本贯通考试题]药物的鉴别试验可以用来证明已知药物的()
A.
真伪
B.
优劣
C.
纯度
D.
品质
【单选题】大剂量可引起尿酸增加血糖升高的降脂药为 ( )。
A.
考来烯胺
B.
洛伐他汀
C.
吉非贝齐
D.
烟酸
E.
以上都不是
【单选题】TCP/IP 协议规定,每个IP地址由( )组成.
A.
网络地址和主机地址
B.
网络地址和端口地址
C.
网络地址和协议地址
D.
主机地址和协议地址
【多选题】TCP/IP 协议规定,每个 IP 地址由( )组成
A.
网络地址
B.
端口地址
C.
协议地址
D.
主机地址
【单选题】大剂量可引起尿酸增加、血糖升高的降脂药为(    )
A.
考来烯胺    
B.
洛伐他汀    
C.
普岁布考    
D.
吉非贝齐
E.
烟酸
【单选题】药物的鉴别试验可以用来证明已知药物的()。
A.
B.
优劣
C.
纯度
D.
品质
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