单项选择 适中0.65 引用2 组卷56
It is well-known to us all that most cotton produced in Xinjiang is picked _______ machine.
A.for | B.by | C.in |
2021·黑龙江齐齐哈尔·一模
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The special thing was invented ________ Liu Jie and used ________ taking notes.
A.by; for | B.to; for | C.by; as |
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