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【多选题】
关于混合时的注意事项正确的是( )
A.
要注意先用少许量大组分饱和乳钵的表面能
B.
若成分颜色差异大，深者先放入乳钵中
C.
若成分颜色差异大，色浅者先放入乳钵中
D.
质轻的成分后放入乳钵中
E.
避免某些纤维性成分与少量色深极细粉接触
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【简答题】听下面一段对话，回答第1-2小题。 1. What was the weather like in California last winter? [     ] A. It was as cold as in Paris. B. It snowed as much as in Paris. C. It snowed less in Paris. 2. Which season is the mo...
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