In the U.S., the amount of indoor water use surpasses the amount of outdoor water use.
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Section A
Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer.
听力原文:M: It's said you and Tina are enthusiastic about yoga class, aren't you?
W: Yes. Tina and I used to take lessons once a week, but now I go twice a week and Tina goes every other day after class.
Q: How many times docs Tina take yoga lessons one week now?
(12)
A. One.
B. Two.
C. Three.
D. Four.
A.根目录中文件f1和子目录W1中文件f1完全相同的B.根目录中文件f1和子目录W1中文件f1不相同的
A. 根目录中文件f1和子目录W1中文件f1完全相同的
B. 根目录中文件f1和子目录W1中文件f1不相同的
C. 根目录中文件f1和子目录W1中文件f1可能相同也可能不相同
D. 树型文件系统中不允许出现相同名字的文件
设集合A={a,b,c,d,e}上的偏序关系如右图所示,则子集{a,b,c}的上界为(60)。
A. a,e
B. a
C. e
D. 无上界
下列关于面向对象的分析与设计的描述,正确的是(5)。
A. 面向对象设计描述软件要做什么
B. 面向对象分析不需要考虑技术和实现层面的细节
C. 面向对象分析的输入是面向对象设计的结果
D. 面向对象设计的结果是简单的分析模型