Britain has used up almost all coal deposits
the demand for British coal has declined
petroleum,water power,and electric power are replacing coal for many purposes
the old British mines are narrow and deep,making it difficult to sue machines fro mining.
第1题:
Which of the following reasons represents why the designed compression ratio of a gasoline engine is lower than that of a diesel engine?
A.compression must be low for effective spark ignition
B.compression must be low for required horsepower and torque generation
C.compression must be low to prevent pre-ignition
D.compression must be low to have effective pre-ignition
第2题:
A 、one-thind
B、one-fourth
C、one-fth
D、two-thinds
第3题:
(e) Briefly provide five reasons to the management of Bailey’s why financial rewards could be considered to improve motivation. (5 marks)
第4题:
第5题:
-Do you know why my flight has been delayed? _ It is () bad weather conditions.
A.because
B.due to
C.owing to
D.because of
第6题:
-- I’ll be free this Sunday. -- _____ a swim?
A. Why don’t you go to
B. What about going for
C. How about going to
D. Why didn’t you go for
第7题:
A.the exhaustion of old mines
B.costly extraction
C.little money being invested
D.the labour shortage
第8题:
(b) (i) State FOUR reasons why payback period is widely used by organisations in the capital investment
appraisal process. (2 marks)
第9题:
You should spend no more than 40 minutes on this task. As part of a class assignment you have to write about the following topic. Millions of people every year move to English-speaking countries such as Australia , Britain or America , in order to study at school, college or university. Why do so many people want to study in English ? Why is English such an important international language? Give reasons for your answer. You should write at least 250 words.
第10题: