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定位误差的构成及产生原因,主要有两个方面:()和()。
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Maggie Banes looked __26__at her watch—as she had done every few minutes for the last three hours. __27__ it was nearly eight o'clock. 'Where on earth is Jill?' she thought.'It isn't like her to be so late.’__28__,she picked up the plate of sandwiches she'd made for tea and went to the kitchen. __29__the door opened and Jill walked into the house. She looked tired. 'What a relief! Are you OK?' said Maggie loudly. 'Yes, I'm fine, Auntie,'replied Jill. 'I'm so sorry I'm late, but something strange happened on the way here.'__30__,Jill explained that, in her hurry to get through the woods, she had tripped and knocked herself unconscious. When she woke up, she realised she was lost. 'I walked around for ages until I found the right path. Then I ran alt the way here.A. ReluctantlyB. Just thenC. anxiouslyD. To her aunt’s amazementE. She was dismayed to see that
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