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A．科学家发展出一种玻璃纤维，轻得象人的头发丝一样，可以用来设计轻型的信号装置。
B．科学家制造出一种玻璃纤维，比人的头发丝还细，这种设计是用来传递光信号的
C．科学家开发出象人的头发一样细的玻璃纤维来传输光信号。
D．科学家研制出跟人的头发丝似的玻璃纤维，用在光导信号的设计上。
答案
更多“Scientists have developed glass fibers as thin as human hair which are designed to carry l”相关的问题
第1题
Which of the following can be inferred from the last paragraph？
A．We have developed industry at the expense of countryside.
B．We have forgotten what our original countryside looked like.
C．People living on islands should protect natural resources for their survival.
D．We should destroy all the built-up areas.
第2题
Questions 6-10
&8226;Look at the table of contents of a report provided by Industrial Development Agency of Ireland below．The table shows the sections of the report．
&8226;For questions 6-10．decide which section(A-H)would be needed by each person.
&8226;For each question，mark one letter(A-H)on your Answer Sheet.
&8226;Do not use any letter more than once？
THINKING OF INVESTING IN THIS COUNTRY？
Need to have a detailed knowledge of one or more of the following
TABLE of CONTENTS
A．Chairman and CEO Overview
B．Research and lnnovation
C．Investment Highlights
D．Statistics
E．Board and Committees of the Board 2007
F．Corporate Governance
G．Organisational Structu re and IDA offices
H Financial Statements
Sarah Lee would like to know the strengths in research in lreland．
第3题
Scientists have known the reason that people grow old.
A．Right
B．Wrong
C．Not mentioned
第4题
Many scientists have been probing psychological problems.
A．solving
B．exploring
C．settling
D．handling
第5题
Some scientists believe that dolphins have a language of their own
A．Right
B．Wrong
C．Not mentioned
第6题
Scientists have worked out a way to help people live longer,
A．Right
B．Wrong
C．Not mentioned
第7题
A.active
B.resistant
C.tough
D.gradual
第9题
