In manufacturing, cheaper materials are constantly being for the better, more expensive kind.
#11844
A
maintained
B
cancelled
C
substituted
D
deposited
推荐题目
The suspect's fingerprint printed on the gun was the main __________ against him.
#13529
A
evidence
B
Information
C
crime
D
conviction
—How much did the guy ________ you to fix your 3G mobile phone?—I don’t remember，but it was quite a lot.
#11046
A
cost
B
spend
C
charge
D
take
He has made up his mind to devote his life _________ pollution _________ happily.
#12482
A
to prevent; to live
B
to prevent; from living
C
to preventing; to live
D
to preventing; from living
After 1953 _______ people have succeeded in climbing the mountain.
#14312
A
several hundred of
B
several hundreds
C
several hundreds of
D
several hundred