She could fix machine without referring to the instructions.A:observingB:learningC:consultingD:understanding
She could fix machine without referring to the instructions.
A:observing
B:learning
C:consulting
D:understanding
B:learning
C:consulting
D:understanding
参考解析
解析：本句意思：她不用参考说明书就能够修理好机器。observe的意思为“观察，遵守”;learn 的意思为“学习，得知，认识到”;consult的意思为“查阅，商量”;understand的意思为“理解，懂 得”。refer to的意思为“参考，涉及”，和consult的意思接近。
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