[单项选择]A great difference between men and women is that ______.


A. women have two chromosomes but men have only one
B. women have two cell lines but men have only one
C. women can choose from two chromosomes but men cannot
D. women can choose from two cells but men cannot

[单项选择]What is the difference between women and men in using the Internet

[单项选择]A great difference between men and women is that ______.
A. women have two chromosomes but men have only one
B. women have two cell lines but men have only one
C. women can choose from two chromosomes but men cannot
D. women can choose from two cells but men cannot

[单项选择]There is a great difference between schools in England and those in Europe in that

[单项选择]The physical differences between men and women can be ______ directly to our basic roles as hunters and child-bearers.
A. pursued
B. traced
C. switched
D. followed

[单项选择]The vocabulary and grammatical difference between British and American English are so trivial and few as hardly ________.
A. noticed
B. to be noticed
C. being noticed
D. to notice

[单项选择]One difference between a constitutional monarch and the president not mentioned by the author is that the______.
A. monarch is non-elective
B. monarch has unlimited tenure
C. president has a limited veto
D. president is limited by the constitution

[单项选择]The difference between mountain climbing and shipwreck diving lies in ______.


A. the amount of oxygen
B. the atmospheric pressure
C. the breathing rate
D. the damaging degree of the human nervous system

[单项选择]What is the fundamental difference between conflict and functional theorists


A. Conceptions of political institution.
B. Conceptions of political power.
C. Functions of the ruling class.
D. Functions of the concentration of power.

[单项选择]The main difference between the investigation and the previous ones is that ______.
A. the researchers started with only one month old infants
B. the observers could rate the quality of child care efforts and analyzed them soon
C. the researchers were able to give the questionnaires to mothers in their homes
D. video equipment enabled researchers to observe what was happening directly

[单项选择]The most striking phonetic difference between American and British English is the pronunciation of ______ in words.
A. r
B. a
C. wh
D. er

[单项选择]

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. It is becoming more accurate.
B. It is more accurate than the biological sciences.
C. It is more accurate than some of the measurements of structural engineers.
D. It is relatively inaccurate.