对流换热问题的定性温度为()。
A.确定流体物性参数的温度
B.流体平均温度与壁面温度的算术平均值
C.壁面温度
D.流体的平均温度
第1题
It's reported that by the end of this month the output of cement (水泥) in the factory by about 10%.
A.will have risen
B.rises
C.will be rising
D.has been rising
第2题
A.will have risen
B.has risen
C.will be rising
D.has been rising
第3题
A.A.will have risen
B.B.has risen
C.C.will be rising
D.D.has been rising
第4题
A.has risen
B.had been rising
C.had risen
D.has been rising
第5题
A.will have risen
B.has risen
C.will be rising
D.has been rising
第6题
A) will have risen
B) has risen
C) will be rising
D) has been rising
第7题
It's reported that by the end of this year the output of cars in this factory ______ (将增加大约10%).
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