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单选题
Before painting, we must clean and wash the painted parts with the cleaning solution. （）
A
在刷油漆之前，应该用干净的棉纱把要上油漆的部分擦干净。
B
从刷油漆时，我们用水冲洗一遍，再用清洁溶剂。
C
在刷油漆之前，我们必须用清洁溶剂清洗要上油漆的部分。
D
在刷油漆之后，我们必须用干净的棉纱把要上油漆的部分擦干净。
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更多 “单选题Before painting, we must clean and wash the painted parts with the cleaning solution. （）A 在刷油漆之前，应该用干净的棉纱把要上油漆的部分擦干净。B 从刷油漆时，我们用水冲洗一遍，再用清洁溶剂。C 在刷油漆之前，我们必须用清洁溶剂清洗要上油漆的部分。D 在刷油漆之后，我们必须用干净的棉纱把要上油漆的部分擦干净。” 相关考题
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考题
单选题From the passage, we can learn _____.A
one shouldn’t criticize others very oftenB
one should often make his windows cleanC
one must judge himself before he judges othersD
one must look at others through his dirty windows.
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