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[主观题]
We use plastics__________ wood and metal now.
A.to take place
B.to take over
C.take the place of
D.in place of
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A.to take place
B.to take over
C.take the place of
D.in place of
Learning to use computers is what we want to ______ from the program.
A.help
B.make
C.aid
D.benefit
Such electron tubes ______ in a radio set are also found in a TV set.
A.that we use
B.as we use
C.as we use them
D.that we use them
A.by hand
B.in hand
C.with hand
A.select
B.update
C.insert
D.delete
A.The kettle is used to boil water
B.We use kettle to boil water
C.We are used to boiling water with kettle
D.We used to boil water with kettle