A．abuseB．utilizeC．adjustD．accumulate
A. abuse
B. utilize
C. adjust
D. accumulate
查看答案
Three years ago, researchers reported that cancer ______.
A. was caused by normal cells
B. sometimes resulted from internal actions of the victim's own body
C. was a hereditary disease
D. was a form. of malignancy
Which of the following is not identical as industrial property？
A. Trademarks.
B. Inventions.
C. Trade secrets.
D. Productive materials.
The word "malignant" (line, 2 Para. 1 ) probably means ______.
A. contagious
B. chronic
C. virulent
D. injured
A．onceB．neverC．sometimeD．over and over
A. once
B. never
C. sometime
D. over and over
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