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【单选题】
临界点是事物保持其根本性质的极限,超出临界点的变化就意味着发生根本性质的变化,即超出了度的范围。譬如,在0°C —— 100°C 这个度中,( )是最低临界点,( ) 是最高临界点。A.
0°C，100°C
B.
1°C，100°C
C.
0°C，99°C
D.
100°C，0°C
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【单选题】It can be concluded from the passage that______.
A.
Schools should not be burdened with responsibility to solve social problems.
B.
Extending school calendar is inevitable for both social and academic reasons.
C.
The present school calendar should be kept because children can learn more experience in their spare time
D.
The school calendar should reflect only students' academic needs.
【单选题】As dean of admissions at the Massachusetts Institute of Technology, Marilee Jones was responsible for ensuring that applicants represented their academic backgrounds honestly. So it was more than a sh...
A.
show that the dean of admission of MIT is a liar.
B.
lead to the problem of dishonest personal resume.
C.
tell us a shocking news in the field of employment.
D.
give an example of poorly qualified employee.
【单选题】It is the driver s resp’nsibility to ( ).
A.
make the front seat passenger wear a seat belt
B.
make the front seat children under 14 wear a seat belt
C.
stop children riding in the front seat
D.
wear a seat belt each time he drives
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