單項選擇題瀝青溶解度試驗時,用預(yù)先干燥的錐形燒瓶稱取瀝青試樣()g。

A.1
B.2
C.3
D.4


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3.單項選擇題軟化點試驗用溫度計量程及分度值為()

A.0~100℃,0.1℃
B.0~300℃,0.1℃
C.0~100℃,0.5℃
D.0~300℃,0.5℃

4.單項選擇題延度試驗用溫度計量程及分度值為()

A.0~100℃,0.1℃
B.0~300℃,0.1℃
C.0~100℃,0.5℃
D.0~300℃,0.5℃
E.0~50℃,0.1℃