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【单选题】
In order to reduce carbon emissions, airlines canA.
change air traffic routes to make it straight and shorter for a flight.
B.
use lighter materials like composites in building a plane.
C.
reduce the number of engines on a plane to cut weight.
D.
produce environment-friendly fuels.
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【单选题】These leather handbags are fully illustrated in the catalogue and are()the same high quality as our gloves.
A.
for
B.
of
C.
to
D.
in
【单选题】How did the man know Judy?
A.
They were in the same math class.
B.
They were in the same high school.
C.
He sat in front of Judy in math class.
D.
He met her in a party.
【简答题】If one high tide occurs at 1:00 am. the next high tide at the same point will occur at about ______.
【单选题】当患者的动脉血氧分压低于多少千帕(KPa)时需给予吸氧
A.
4.6kPa(35 mmHg)
B.
5.6kPa(42mmHg)
C.
6.6kPa(50mmHg)
D.
7.6kPa(57mmHg)
E.
8.6kPa(65mmHg)
【单选题】当患者的动脉血氧分压低于多少千帕(kPa)时需给予吸氧
A.
4.6 kPa(35 mmHg)
B.
5.6 kPa(42 mmHg)
C.
6.6 kPa(50 mmHg)
D.
7.6 kPa(57 mmHg)
E.
8.6 kPa(65 mmHg)
【简答题】四冲程汽油机总体构造上有何特点?
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