皮皮学,免费搜题
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【简答题】
阅读下列材料, 从所给的四个选项(A、B、C、D)中,选出符合各小题要求的最佳选项。 小题1:___________ Rik has graduated from a high school and he wants to find a job with high pay in the town. He has just passed his driving test. He loves vehicles a lot. 小题2:___________ Mrs. Sphinx is a middle aged woman. She is out of work now. It is hard for her to find a suitable job for the lack of special train when young. However, she has a large family with four children to support. 小题3:___________ Christina, young and attractive, is good at English. She wants to go abroad to run a hotel after graduation. But she is lack of experience. So she needs practice. 小题4:___________ Jacky is a newly-graduated college student. He majors in computer. He also plays guitar fairly well. So he entertains himself with it when he is free. A TUTORING, English, Maths, Physics, Computer Call Miss Smith, 800-3595 GUITAR TEACHER Wants students. Folk/ Jazz, Bob, 800-7535 B HELP wanted for housework half a day per week. When—to be discussed. Good wages. Sylvan Street. Call 800-2817 If you are available a few hours during the day, some evenings and weekends to care for a school age child, please call Gayle Moore, days 800-1111, evenings and weekends 800-4964. C PERSONS wanted for delivery work.. Own transportation. Good pay. Apply 2311 E. Stadium. Office 101. After 9 a.m. D WAITRESSES wanted to 10 a.m.—2 p.m. or 10:30 a.m.—5 p.m. Apply in person, 207S. Main. Curtis Restaurant.
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举一反三
【单选题】If -1,0,2 are eigenvalues of a 3×3 matrix A, then which of the following is Not the eigenvalue of the matrix ?
A.
1
B.
4
C.
2
D.
11
【判断题】If 1,-1,2 are eigenvalues of a 3×3 matrix A, then A is nonsingular.
A.
正确
B.
错误
【判断题】If A is a 3*3 matrix with three pivot positions, there exist elementary matrices E_1,E_2,...,E_p such that E_p...E_1A=I .
A.
正确
B.
错误
【单选题】下列无动力的细菌是
A.
霍乱弧菌
B.
伤寒沙门氏菌
C.
痢疾志贺菌
D.
大肠埃希菌
E.
变形杆菌
【单选题】根据信道的传输参数的特性可分为恒参信道和随参信道,恒参信道的正确定义是()。
A.
信道的参数不随时间变化或随时间缓慢变化
B.
信道的参数不随时间变化
C.
信道的参数随时间变化
D.
信道的参数随时间快速变化
【简答题】美国混合主义市场经济体制的基本特征主要有哪些?
【单选题】胰岛素笔注射胰岛素发生感染的预防措施哪项不正确:
A.
注射前清洁注射部位皮肤,操作者清洁双手
B.
严格执行无菌操作原则
C.
交代患者,注射后不可随意搔抓或揉按注射部位
D.
针头多次使用
【简答题】试从电商购物的流程分析,从用户下单到最终用户收到商品整个过程中,会经过哪些子系统,以及各子系统的主要作用是什么?
【多选题】在涉外交往中,话题力求_______,那些人们共同关心的全球性话题。()
A.
大方
B.
高雅
C.
轻松
D.
时尚
E.
前卫
【单选题】大厅的湿度是一项重要的环境条件,适宜的相对湿度应控制在( )的范围内。
A.
20----40%
B.
40----60%
C.
60----80%
D.
80%以上
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