Vitamin B is essential for human body.
A. Right
B. Wrong
C. Not mentioned
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Stomach cancer is the most dangerous among all cancers.
A. Right
B. Wrong
C. Not mentioned
There is an apparent link between lung cancer and vitamin A.
A. Right
B. Wrong
C. Not mentioned
Major manufacturers have been using "quality circle" with undeniable success for more them
A. 100 years
B. 20 years
C. 50 years
D. 10 years
The oscillator was easier to use, more stable, and less expensive than others available at
A. changeable
B. unchanging
C. diverse
D. strong