單項選擇題瀝青溶解度試驗時,應(yīng)在裝有瀝青試樣錐形燒瓶中分次加入三氯乙烯()mL,直至試樣溶解。

A.50
B.100
C.150
D.180


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4.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℃

5.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℃