数据库技术的根本目标是要解决数据的( )。A.存储问题 B.共享问题 C.安全问题

来源:www.tikuol.com 发布时间:2018-01-04 22:56
题型:单项选择题

问题:

数据库技术的根本目标是要解决数据的( )。

A.存储问题

B.共享问题

C.安全问题

D.保护问题

答案:

点击这里,查看答案

要到微信小程序或APP查看答案哦。

实在点不开答案,可以分享到微信,

在微信里面查看答案。

APP具体操作流程为:

1、下载安卓(苹果)APP

2、点这里打开APP显示答案

题型:选择题

有关经纬线的叙述,正确的是[ ]

A、所有的纬线长度都相等,指示东西方向

B、经线相互平行,指示南北方向

C、赤道是最长的纬线

D、纬线指示南北方向,经线指示东西方向

题型:阅读理解

Billboard
May 30-June 5, University of Waterloo
Wednesday, May 30
Gloria Steinem, author of “Revolution From Within” will discuss her book. 8 p.m. Public Library Park Branch. Further information: Susan Smith, 824-4120. ext. 2896.
Thursday May 31
Noon hour concert at Art Centre Music Hall featuring chamber music; Jana Skareski, composer. 12 : 30 p.m. Admission free.
Archeology Open House at WLU. Displays of photographs and objects from Africa, Southwest Asia, the Old and New World; the university’s permanent collection. 10 a.m. to 4 p.m.  Archeology rooms, 202 Regina St. Exhibit continues until June 6.
Friday, June 1
Noon hour discussion with Arthur Read, Dean of Arts and Science, WI.U.
Topic: “Universities in the 2000’s”. Public Library Mairt Branch. Details: 743-0271. Food and drinks available.
Saturday, June 2
Arts Lecture Series with Dr. Mary Malone, Religious Studies, St. Jerome’s College.
Topic: “Woman and Religion”. 9 : 30 a.m. Humanities Theatre. Details: 884-8110.
Chamber Music Concert at WLU performed by music students of WLU. 8 p. m. Art Centre Music Hall. Admission: $ 6 adults; seniors and WLU students and staff member $ 3; High school and primary pupils, free.
Sunday, June 3
University of Waterloo 2001 Campus Day featuring Chem istry Magic Show, animal show, fashion show, square dancing and more. 9 a.m. to 5 p.m. Biology & Chemistry Block, WLU Campus. Further details: 824-4120, ext. 8366.
Monday, June 4
Slide/Video Presentation featuring Hong Kong, Macao and Singapore. Sponsored by International Graduate Students Committee (IGSC). All graduates welcome; free. 5 : 00~8 : 00 p.m. Humanities Theatre. Free snacks provided.
Tuesday, June 5
Quick Questions. Drop in to see Ms. Barb Riley, who can answer your brief career or job-related questions. 1 to 4 p. m. Career Services. Public Library Main Branch: For information call ext. 3001.
84.  Rosa’s parents are both WLU professors. They are going to see Rosa perform on Saturday evening together with her grandpa and her 15-year-old sister. How much will the family pay for the tickets?
A. $12.            B. $18.           C. $15.           D. $9.
小题1:
Nick is eager to find a good job after graduation. From whom can he get some information?
A.Gloria Steinem.
B.Ms. Barb Riley.
C. Jana Skareski.
D.Arthur Read or Mary Malone.
小题2:
When are you likely to meet quite a few graduates of Waterloo University?
A.5:00~8:00 p.m., Monday.
B.9:30 a.m., June 2.
C.10 a.m. to 4 p.m., Thursday.
D.12:00~1:00, June 1.
小题3:
If you are interested in all the activities and lectures at weekend, how many places can you go at most?
A.2.B.3.C.4.D.5.
题型:单项选择题

重要空白凭证使用的风险表现是哪一个()

A.凭证号与使用顺序号

B.使用程序

C.外来重要凭证

D.跳号使用、私自滞留重要空白凭证、有价单证

题型:名词解释

海陆风。

题型:问答题 计算题

某浮选厂粗选加丁黄药b=150.0g/t,药液浓度k=10.0%,药液比重δ=1.05t/m3,处理矿量Q=25.0t/h,求司药工min添加多少?