it is hard for me to give you a definite answer.
A. sure
B. correct
C. real
D. clear
查看答案
They want to clear out ________
Dr. Smith hopes to make this device lighter so as to help the blind navigate unfamiliar places.
A. Right
B. Wrong
C. Not mentioned
On what are their research findings based？
A survey of farmers in northern Japan.
B. Tests preformed on a thousand old people.
C. The study of brain volumes of different people.
D. The latest development of computer technology.
What Dr. Reinhorn said in the last paragraph may imply all the following EXCEPT that_____.
A. blast engineers should develop new solutions for terrorist-resistant design.
B. blast engineering can borrow technologies developed for terrorist-resistant design.
C. solutions developed for earthquake-resistant design may apply to terrorist-resistant design.
D. blast engineering emerges as new branch of science.
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