单用户数据库管理系统与多用户数据库管理系统之间的最明显的也是_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

单用户数据库管理系统与多用户数据库管理系统之间的最明显的也是最重要的差别是：是否支持多个用户______数据库。

A．查询

B．定义

C．修改

D．共享

答案

参考答案：D

解析：[分析] 单用户数据库管理系统与多用户数据库管理系统之间的最明显与最重要的差别是：是否支持多个用户共享数据库。

完形填空

完形填空。

Panda Express is a fast food restaurant chain (连锁店) in the United States. It sells Chinese food.
When you go to 1 malls, supermarkets, airports, train stations, parks, stadiums, college

campuses and   2   other places, you can see Panda Express. It is   3   chain
of Chinese fast food restaurants in the United States. Panda Express   4   in
1983 by Andrew Cherng, Peggy Cherng and Ming Tsai Cherng. They were
from Yangzhou, Jiangsu, China. Now Panda Express has 1,321 restaurants
in 38 states and Puerto Rico,and the top-selling food of Panda Express   5
Orange Chicken and Beijing Beef.

( )1. A. shop
( )2. A. many
( )3. A. large
( )4. A. was opened
( )5. A. are

B. shopping
B. a lot
B. larger
B. opened
B. will be

C. shops
C. much
C. the largest
C. is opened
C. was

D. shoping
D. lots
D. largest
D. opens
D. is

单项选择题

某患者出现前额部头痛，卧位时减轻，立位时加重，考虑（）

A.典型偏头痛

B.丛集性头痛

C.紧张性头痛

D.痛性眼肌麻痹

E.低颅压性头痛