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【判断题】
平面机构自由度计算公式中的n是组成机构的总构件数。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】She was concerned her 15-year-old daughter who was often seen going out a man twice her age.
【单选题】When Lola asked what the advertising campaign should say, she was concerned with which of the five Ms?
A.
Mission
B.
Money
C.
Message
D.
Media
【简答题】She was concerned her 15-year-old daughter who was often seen going a man twice her age.
【单选题】一台三角形接三相异步电动机在额定电压下起动时的起动电流为 300A ,现采用星三角换接开关降压起动,其起动电流 Ist 为( )
A.
100A
B.
173A
C.
212A
D.
150A
【单选题】She was concerned her 15-year-old daughter who was often seen going a man twice her age.
A.
for, out
B.
for, away
C.
about, away with
D.
about, out with
【单选题】一台三角形连接的三相异步电动机在额定电压下起动时的起动电流为300A,现采用星-三角换接接开关降压起动,其起动电流Ist为 ( )。
A.
90A
B.
173A
C.
212A
D.
100A
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