【判断题】Oracle 中,索引可以分为B树索引和位图索引,默认使用的是位图索引。
【单选题】Which of the following statements is fight?
A.
Microfilm is a tiny square film no bigger than your thumbnail.
B.
To borrow a microfilm you do not need to find out the call slip.
C.
You can read the materials on a microfilm directly.
D.
You must use a machine to read the material on a microfilm.
【简答题】当一个企业规模较小,人力、物力、财力都比较薄弱时,应当采取()竞争策略。 A. 进攻策略 B. 专业化经营 C. 市场多角化 D. 防御策略
【单选题】Which of the following statements is true?
A.
Active smokers in general performed better than deprived smokers.
B.
Active smokers responded more quickly than the other subjects.
C.
Non-smokers were not better than other subjects in performing simple tasks.
D.
Deprived smokers gave the slowest responses to the various tasks.
【单选题】当一个企业规模较小,人力、物力、财力都比较薄弱时,其应当采取?
【单选题】当一个企业规模较小,人力、物力、财力都比较薄弱时,应当采取( )竞争策略。
【简答题】索引可以分为_______索引和_______索引。
【简答题】在A1至A5单元格中求出最小值,应用函数 。