下面哪类市场信息的获得对创业者来说既现实又最重要（）。 A.别人不知道而我知道的信息

命题 “如果，那么a=b”的逆命题是（    ）。

阅读短文，选择正确答案。

     One of the things to be learnt in a foreign language is guessing all the time what kind of thing to come when

listening to someone talking. People do this all the time in their own language, so it is necessary (必要的) to do

this in a foreign language, too. Here are some examples.

     1. "What's the matter?" "I went to a party last night, so I…"

     2. "I feel so tired these days." "I think you'd better…"

     3. "Of course, she never stops talking. She is one of the most…"

     You can see from the above three examples that the context (上下文) helps a lot in understanding what is

being talked about. So "guessing" is very important in understanding English, especially (尤其) spoken English.

1. This passage tells us mainly about _______. [ ]

A. the importance of "guessing" in learning a foreign language

B. how to guess what one is going to talk about

C. some examples of right guessing

D. how important it is to guess all the time

2. From the context, we can see maybe the finished answer in EXAMPLE 1 is _______. [ ]

A. "…so I didn't have a good time."

B. "…so I went to bed very late."

C. "…So I felt unhappy."

D. "…so I got up very early."

3. Maybe the finished answer in EXAMPLE 2 is ________. [ ]

A. "I think you'd better have a good rest and take good care of yourself."

B. "I think you'd better have something to drink."

C. "I think you'd better get some help from your friends."

D. "I think you'd better be more careful."

4. Maybe the finished answer in EXAMPLE 3 is ______. [ ]

A. "… she is one of the most famous film stars."

B. "…she is one of the most beautiful women."

C. "… she is one of the most famous speakers."

D. "…she is one of the most talkative women."

5. From the passage we can infer (推断) that guessing is _______ in learning a foreign language. [ ]

A. the only way

B. more important in spoken English than in written English

C. more important than any other way

D. more important in written English than in spoken English

张老师买了2千克芒果和2千克香蕉用去了14元．每千克芒果比每千克香蕉贵3元，每千克芒果和每千克香蕉多少元？

小王25岁，在一家企业任职，月薪2500元，收入年成长率3%，考虑到自己的长远发展，他打算花三年时间攻读相关专业的研究生。研究生阶段学费8000元/年，学习期间可以做一些兼职工作，每年可得3000元，预计毕业后届时月薪可达4500元，收入成长率仍为3%，假设上学期间不考虑货币时间价值，60岁退休，则攻读研究生的年投资报酬率为( )(答案取最接近值)。

A．19.30%
B．22.60%
C．28.00%
D．31.20%

简述刑事侦查活动监督的途径。