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(单选题) 1: Magnesium has a specific gravity of 1.74, which means that ___ 1.74 times as much as an equal volume of water.
A: it is weighed
B: weighing it
C: its weight
D: it weighs
(单选题) 2: If you don't hear anything ____ the contrary I'll meet you at 7 o'clock tonight.
A: on
B: in
C: to
D: about
(单选题) 3: We prefer to discuss the plan fully -____ it in practice hurriedly.
A: than put
B: to put
C: rather than put
D: to putting
(单选题) 4: She told the children to ____ while she was talking on the telephone..
A: pipe down
B: pipe away
C: pipe up
D: pipe in
(单选题) 5: He tends to get ___ when watching wrestling on TV.
A: carried back
B: carried through
C: carried off
D: carried away
(单选题) 6: Most of the people were ____ down by hunger and poverty.
A: ground
B: grinding
C: pulled
D: beaten
(单选题) 7: I tried to ___the note to him in the exam while the teacher wasn't looking.
A: take
B: slip
C: give
D: bring
(单选题) 8: The children ____the playground for a break from the classroom after the bell had rung.
A: crowded into
B: packed into
C: streamed into
D: crawled into
(单选题) 9: The author gave an example ____ support of his argument.
A: for
B: to
C: in
D: with
(单选题) 10: He made a ___ to build a successful business on his own in this district.
A: disposal
B: hint
C: perspective
D: resolve
(单选题) 11: The medicine the doctor gave him ___ his headache.
A: freed
B: refreshed
C: released
D: relieved
(单选题) 12: You've ___ my drink!
A: knock down
B: knock together
C: knock over
D: knock up
(单选题) 13: They had ____ themselves and their followers that it was a necessary act of disinfection.
A: believed
B: bewildered
C: convinced
D: argued
(单选题) 14: ___ a bit, or you'll make yourself ill.
A: Slow
B: Slow up
C: Slowly
D: Slovenly
(单选题) 15: The computer can be paid for in the ten monthly ___ of 100 dollars.
A: pay
B: pays
C: payment
D: payments
(单选题) 16: Some quite artistic, yet inexpensive fabrics are now being ___ from British mills.
A: turned out
B: turned over
C: turned up
D: turned off
(单选题) 17: She has a ____ for saying the wrong thing.
A: genesis
B: genius
C: genie
D: genetics
(单选题) 18: Red began to ____ fashion this spring.
A: come from
B: come over
C: come into
D: come out
(单选题) 19: He was fined $100 for ___ illegal ___.
A: an / parking
B: -/parking
C: -/parking-lot
D: an/park
(单选题) 20: He was ____ of the crime.
A: innocence
B: harmless
C: innocent
D: guilty
(单选题) 21: The factory ____ its waste into the river.
A: gathers
B: discharges
C: escapes
D: hires
(单选题) 22: His stupid remarks ____ a fight.
A: touched down
B: touched on
C: touched off
D: touched up
(单选题) 23: If you need any help, don't ____ to ask.
A: hesitate
B: hate
C: hasten
D: habitat
(单选题) 24: Mountain climbers challenge the limits of human ___ in their attempts to scale the world's highest peaks-the one who can last to the end wins.
A: stamina
B: ability
C: suffering
D: intelligence
(单选题) 25: Don't ____ his tricks.
A: fall in
B: fall into
C: fall for
D: fall out
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