轴瓦与轴颈之间的配合，应能保证稳定的润滑油膜，接触角一般在（）
A.45～60°
B.60～90°
C.90～120°
参考答案：B
薛生白《湿热病篇》指出：“湿热证，（），湿热阻遏膜原，宜柴胡、厚朴、槟榔、草果、藿香、苍术、半夏、干菖蒲、六一散等味。”
Daniel is ________ his purse, but he can't ________ it. [ ]
A. looking for; find
B. seeing; look for
C. finding; look at
D. looking at; see
