A rectangular floor 18 feet by 10 feet is to be completely covered with carpeting that cos
A.20x
B.28x
C.60x
D.180x
E.540x
A.20x
B.28x
C.60x
D.180x
E.540x
A.9
B.15
C.42
D.108
E.144
Column A Column B
The area of the scale drawing of the floor 24 square centimeters
A.if the quantity in Column A is greater
B.if the quantity in Column B is greater
C.if the two quantity are equal
D.if the relationship cannot be determined from the information given
A.common
B.power
C.unimportant
D.ordinary
A、a continuous rectangular pulses
B、a periodic sequence of rectangular pulses
C、a continuous sinusoidal signal
D、a periodic sinusoidal signal
The Yueyang Pavilion is a four storey, rectangular building which reaches 15 meters.()
参考答案:错误
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