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【单选题】
If an object of mass m moves with constant velocity v, the net force on the object isA.
mg
B.
mv
C.
mv/t
D.
0
E.
None of these answers is correct.
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反馈参考答案：
举一反三
【单选题】Which of the following can explain the word 'duplicating' in line 4 from the bottom?
A.
Copying.
B.
Making.
C.
Creating.
D.
Giving.
【单选题】你正在计划筹建一个新公司,成为提供在线时间表和项目跟踪应用的应用服务提供商。为了更好的与你的用户沟通并管理与用户之间的关系,你会选择实施:
A.
外联网
B.
内联网
C.
KMS
D.
CRM
【单选题】In the article, the word 'vital', in paragraph 4, line 4 is closest in meaning to
A.
important.
B.
medical.
C.
remarkable.
D.
lively.
【简答题】In line 4 the word “it” refers to ________. [A] standard of towns [B] similarity of towns [C] people’s memory [D] mass production
【单选题】In Line 4 the word 'it' refers to
A.
standard of towns
B.
similarity of towns
C.
people's memory
D.
mass production
【单选题】Which of the following is closest in meaning to the word 'oblivious'(Line 4)in the third paragraph?
A.
sober
B.
absorbed deeply
C.
not noticing
D.
forgetting
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