It rains very heavily in this area, which has _______ annual rainfall of 7,000 mm, _______
ideal environment for forests.
A.the; an | B.an; 不填 | C.an; an | D.不填; the |
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It rains very heavily in this area, which has _______ annual rainfall of 7,000 mm, _______
ideal environment for forests.
A.the; an | B.an; 不填 | C.an; an | D.不填; the |