摘要：35．From this simple concept that has caused a great change in farming. A．has a technique developed B．has developed a technique C．a technique has developed D．developed as a technique has
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. From this simple concept ________ that has caused a great change in farming.
|
A．has developed a technique |
B．has a technique developed |
|
C．a technique has developed |
D．developed as a technique has |
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. From this simple concept ________ that has caused a great change in farming.
| A．has developed a technique | B．has a technique developed |
| C．a technique has developed | D．developed as a technique has |