—What were you doing when I phoned you last night?

—I _____my painting and was starting to take a bath.

A．have already finished

B．was finishing

C．had just finished

D．was going to finish

可作为软膏的基质，具有适宜的稠度与涂展性，但吸水性差的是（）

A.聚乙二醇

B.液状石蜡

C.凡士林

D.甘油

E.羊毛脂