21．Experts say that Longtan hydropower project, China’s third largest, will be great help ——青夏教育精英家教网—

摘要：21．Experts say that Longtan hydropower project, China’s third largest, will be great help to flood control and improving condition for shipping. A．不填, the B．a; 不填 C．a; the D．the; the

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Experts say that Longtan hydropower project, China’s third largest, will be _________ great help to _______ flood control and improving condition for shipping.

A. 不填； the B. a; 不填 C. a; the D. the; the

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Experts say that Longtan hydropower project, China’s third largest, will be _________ great help to _______ flood control and improving condition for shipping.

A．不填； the B．a; 不填 C．a; the D．the; the

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Experts say that Longtan hydropower project, China’s third largest, will be ________ great help to ________ flood control and improving condition for shipping．

[　　]

A．不填；the

B．a；不填

C．a; the

D．the; the

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