A sample of osmium metal powder has been compressed under high pressure and found to have hardness higher than that of diamond.
A. higher than that of
B. higher than
C. more high than that of
D. more high than
E. that is higher than that of
A sample of osmium metal powder has been compressed under high pressure and found to have hardness higher than that of diamond.
A. higher than that of
B. higher than
C. more high than that of
D. more high than
E. that is higher than that of