Passage Two
The difference between biological and physical science is not that one is inexact, the other exact, but in degree of exactness, this being related to the number of variables which must be dealt with simultaneously and the extent to which they can be controlled. In general, the biological sciences must deal with larger errors than the physical sciences; but this is not uniformly true, as the student will realize when he considers the accuracy of meteorological prediction or if he comprehends the meaning of the fact that the structural engineer considers it necessary very often to use a safety factor of two or three hundred per cent. The statistical principles of dealing with error of measurement, or in prediction and generalization, are the same whether the errors are large or small. Statistics is not a means of confusing issues that would otherwise be clear, nor a substitute for obtaining clear answers, but a means of checking and controlling conclusion
A. the skill of the scientist
B. the extent to which variables can be controlled
C. the requirements of the observer
D. the development of more accurate instruments
Passage Two
The difference between biological and physical science is not that one is inexact, the other exact, but in degree of exactness, this being related to the number of variables which must be dealt with simultaneously and the extent to which they can be controlled. In general, the biological sciences must deal with larger errors than the physical sciences; but this is not uniformly true, as the student will realize when he considers the accuracy of meteorological prediction or if he comprehends the meaning of the fact that the structural engineer considers it necessary very often to use a safety factor of two or three hundred per cent. The statistical principles of dealing with error of measurement, or in prediction and generalization, are the same whether the errors are large or small. Statistics is not a means of confusing issues that would otherwise be clear, nor a substitute for obtaining clear answers, but a means of checking and controlling conclusion
A. Never.
B. Always.
C. Usually.
D. Occasionally.
Passage Two
Two men on a touring holiday of Britain were injured by an explosion in their motor van in the centre of Norwich yesterday.
Shoppers, traders and businessmen in Red Lion Street were shocked by a loud bang, and seconds later the two men jumped over from the vehicle, which had stopped outside Barclays Bank. Several people rushed to give assistance and helped to put out the fire inside the vehicle, a light American truck converted to provide living accommodation, before Norwich firemen arrived.
The men--American Mr. Gary House, aged 25, of Ohio, who was driving, and his passenger Mr. Charles Lynn, 23, of Vancouver--were taken to Norfolk and Norwich Hospital with minor bums. They were allowed to leave after treatment.
"I heard this explosion, it was pretty loud. I thought it could have been a bomb." Said Mr. Webster, manager of the market, who was working in his office in Red Lion Street. "I looked out of the window an
A. Mr. Webster was a witness of the accident.
B. Mr. Webster didn't take a fire extinguisher to the van.
C. Mr. Webster helped to put out of the fire.
D. Mr. Webster was willing to be a helper in the accident.
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