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hoaihao04
2 năm trước
câu 1 một đoàn tàu chuyển động trong 10 giờ, 4 giờ đầu đi với vận tốc 60 km / h quãng đường tiếp theo đi với vận tốc 50 km / h trong thời gian 6 giờ hãy tính vận tốc trung bình của đoàn tàu trên Giúpp emm với mọi người oiii
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With the socioeconomic development, more and more cities around the world have been(1) with the shortage of housing. These day, there are a large (2) of laborers flooding into city centers to search for suitable jobs with highlevel of (3) . As a result, the demand of the (4) has risen significantlythan ever before because the demands outweigh the supplies. Moreover, most peoplewould like to live in cities because they have a higher (5) of living than thatof the countryside. Obviously, with stable and high income of the employees, they wouldhave a better cultural life as well as (6) life in cities. To address this social problem, governments should call for investment in thecountryside to (7) labor forces. In addition, they also need to put an effort intoraising a great deal of money to build more skyscrapers to meet demands of housing and(8) a law that sets strict conditions to work and to live in cities.

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