系列之三：C类
单选题What does the man mean?A They had some doubts to discuss there.B They went to see two movies together.C They both arrived there at the exact time.
题目
They had some doubts to discuss there.
They went to see two movies together.
They both arrived there at the exact time.
相似问题和答案
第1题：
What does the underlined word “correspondence” in the Paragraph 1 probably mean? 【 】
A.messages
B.ideas
C.connections
D.programs
第2题：
A、Get the bill
B、Buy the bill
C、Pay for the bill
D、Take the bill
第3题：
What does the man mean？
A.He feels sorry about it.
B.He prefers his party.
C.He is worried about it.
第4题：
What does the man mean?
A. It will take about one month to repair the watch.
B. It costs too much to have the watch repaired.
C. The watch is no longer worth repairing.
第5题：
what does “lifebuoy with light and smoke” mean?
第6题：
What does the underlined phrase “an instant hit” (Para. 3) mean?
A a fast blow
B a sudden beat
C a big strike
D a quick success
第7题：
What is a logical data mapping and what does it mean to the ETL team?
什么是逻辑数据映射？它对ETL项目组的作用是什么？
答：
逻辑数据映射（Logical Data Map）用来描述源系统的数据定义、目标数据仓库的模型以及将源系统的数据转换到数据仓库中需要做操作和处理方式的说明文档，通常以表格或Excel的格式保存如下的信息：
目标表名：
目标列名：
目标表类型：注明是事实表、维度表或支架维度表。
SCD类型：对于维度表而言。
源数据库名：源数据库的实例名，或者连接字符串。
源表名：
源列名：
转换方法：需要对源数据做的操作，如Sum(amount)等。
逻辑数据映射应该贯穿数据迁移项目的始终，在其中说明了数据迁移中的ETL策略。在进行物理数据映射前进行逻辑数据映射对ETL项目组是重要的，它起着元数据的作用。项目中最好选择能生成逻辑数据映射的数据迁移工具。
第8题：
第9题：
what does “single up forward to breast line and spring” mean?
第10题：
What does the man mean?
A. He got there in only five minutes.
B. He has a good reason for being late.
C. He is used to waiting for the woman.