When it comes to geography questions, I want to ask you a geography question

b 5 p.m. minus 9 a.m. for a total of 8 hours, and since the day is 24 hours, the question option is given to three locations, so the time difference between each adjacent location is 8 hours (24 3). Option b is calculated to be compliant.

London is in the 0 time zone, Hong Kong is in the East 8 zone, and San Francisco is the West 8 zone. So when London closes at 5 p.m., San Francisco opens at exactly 9 a.m.; San Francisco closes at 5 p.m., while Hong Kong opens at 9 p.m.; Hong Kong closes at 5 p.m. and London opens at 9 p.m. This guarantees 24-hour operation.

Because the longitude difference between London, Hong Kong, and San Francisco is basically 120 degrees. 15 degrees for an hour, 120 degrees for eight hours. Got it?

Fifteen degrees an hour, find out the time zone of these places, and you're good to go.

When London is closed, Hong Kong or San Francisco is open, and when Hong Kong is closed, London or San Francisco is open, and the market hours of these three cities cover exactly the entire 24 hours. This question examines the conversion time of different time zones, the specific calculation is very complicated, the geography teacher in high school will generally talk about this question several times, if you are a student, or ask the teacher; If you're a teacher, I can't help it!!

4.Company C's sales far exceed the minimum population needed to sustain the company's survival, and of course it is profitable.

5.Because A is obviously not profitable, it loses money, and it can't survive, so it accommodates three.

Unprofessional, try to analyze, 4, A and D because the demand threshold is greater than the sales scope, the company is not able to survive, exclude.

B and C can be profitable, but C's demand threshold is low, so the profit is the largest.5 Due to the serious losses of company A in the district, which can lead to bankruptcy, the district can accommodate 3 department stores of this type.

4.A place has a limited population because it has a limited demand. As can be seen from the figure, C's demand threshold is much smaller than its sales range, so from the topic, that is to say, the number of consumers needed for the company's survival has not only been satisfied, but also has a surplus population as its consumer group to increase its profits, so it will naturally earn more.

Therefore, C is chosen. 5.The reason why the area can accommodate up to three rooms is that, according to the solution to the previous question, it can be seen that there are two department stores that are not profitable, but it can also be seen that the threshold for meeting the needs of Ding Survival and its sales scope is not too different, so only one company needs to close down to achieve the profitability of three companies. So the answer is B.