()1.WhendidtheIndustrialRevolutionpossiblyhappen?A.In1970.B.In1850.C.In1875.D.In1775.()2.What'sthemainreasonforthechangesinthesecondhalfoftheeighteenthcentury?A.Theincreas
( )1. When did the Industrial Revolution possibly happen?
A. In 1970. B. In 1850. C. In 1875. D. In1775.
( ) 2. What's the main reason for the changes in the second half of the eighteenth century?
A. The increase of population.
B. A lot of people came to towns.
C. The inventions such as the steam engine were made.
D. People liked working in the town.
( ) 3. Which of the following statements is TRUE according to the passage?
A. Factory workers lived in very poor and crowded conditions at that time.
B. Thousands of farmers left the countryside and were out of work.
C. Before the Industrial Revolution factory owners were more powerful than land owners.
D. In 1830 the Industrial Revolution spread through Europe to other countries.
( ) 4. The steam engine first was used in____ .
A. factories B. farmers
C. schools D. mines
( ) 5. made the population of towns and cities greatly increased____ .
A. The invention of the steam engine
B. That many factories were built in towns
C. That farmers liked working in the town
D. The Industrial Revolution spreading to other countries
已知a+b+c=1,求证:(a/1+b+c)+(b/1+a+c)+(c/1+a+b)≥3/5已知a 2020-04-05 …
school .l visited last year was not the one .l on 2020-05-14 …
设a,b,c为满足a+b+c=1的正实数,证明:a3√1+b-c+b3√1+c-a+c3√1+a- 2020-05-16 …
1.已知a,b,c∈R.a+b+c=1a²+b²+c²=1/2求证c≥02(1)已知a,c是正实数 2020-07-14 …
高二数学题,帮忙解决,要步骤的(1)设a,b,c属于R,a+b+c=0,abc0.(2)设a,b, 2020-07-22 …
条件等式求值~帮忙做一下...1.已知a+b+c=1,a^2+b^2+c^2=2,a^3+b^3+ 2020-07-24 …
设a,b,c都是正数且a+b+c=1,求证:(1+a)(1+b)(1+c)≥8(1-a)(1-b) 2020-07-25 …
1:设a,b,c都是正数,且3的a次方=4的b次方=6的c次方,则:()A.1/c=(1/a)+( 2020-07-30 …
二、选择正确的答语.A栏B栏1.What’syourname?a.5feet,11inches2.W 2020-10-30 …
整式综合1.求[8+2(k-1)][60-3(k-1)]的最小值.2.已知1/(a-b)+1/(b- 2020-10-31 …