第29题: [单项选择]Gore made a call to Bush to his defeat in the election, but he soon retracted it as word spread that the ballots had been recounted. A. acknowledge B. reckon C. confess D. proclaim 参考答案:D 答案解析:proclaim宣布,声明;acknowledge承认;reckon计算,估计;confess坦白,忏悔。
第30题: [多项选择]静风污染的特点包括( )。 A. 各向异性 B. 各向同性 C. 近距离污染 D. 远距离污染 E. 熏烟污染 参考答案:B,C