[单项选择]The passage shows that the author is ______ the present situation
A. critical of
B. puzzled by
C. disappointed at
D. amazed at

[单项选择]The passage shows that the author is ______ the present situation.
A. critical of
B. puzzled by
C. disappointed at
D. amazed at

[单项选择]The passage suggests that the author would most probably agree with which of the following assessments of optical computing in its present form
A. (A) Although the future of optical computing is impressive, its applications are too limited in scope to justify much optimism.
B. (B) The outlook of its development is positive on the surface, but many claims made about it are misleading.
C. (C) Efforts to develop the technology have been sufficiently positive to maintain the interest of electrical engineers and physicists.
D. (D) Because of design flaws, the task of developing optical computing will require greater resources than are presently available.
E. (E) The state of development of optical computing is too contradictory to allow for an easy assessment of its future.

[单项选择]The author shows that cattle prices went down as the result of
A. a drop in demand for cattle
B. the mass sell-off of cattle futures
C. big commercial feedlots selling their cattle
D. people selling their cattle to cover their losses

[单项选择]In the second paragraph, the author shows us the structure of the Cell chip in the way of_______.

[单项选择]The experiment described in the passage shows that______.
A. an infant prodigy performs much better than ordinary kids
B. developmental psychology is an interesting subject
C. babies can learn intricate tricks so long as they are trained
D. toys are important tools to teach science with

[单项选择]The passage shows us when Americans need advice they often get it from ______.
A. women
B. books
C. letters
D. strangers

[单项选择]The passage shows that alchemy in the medieval time ______.
A. established modern chemistry
B. cured all the diseases
C. turned base metals to gold
D. was taken as somewhat justifiable

[单项选择]In this passage the author apparently intends to


A. write a fictionalized account of evolution.
B. be scientifically precise.
C. raise philosophical issues.
D. convince readers that war is inevitable.