题目

下列河流中水量丰富,含沙量小,无冰期的是 ( )A. 长江 珠江 B. 黄河 海河C. 长江 黄河 D. 黑龙江及支流松花江 答案:【答案】A【解析】试题分析:依据部分河流的水文特征来解答此题.解:河流的水文特征主要包括水位、流量、含沙量、有无结冰期四个方面.冬季结冰的有黄河、海河、黑龙江及支流松花江,且黄河含沙量很大.故选项A符合题意.故选:A.Tom is the only one of the staff members who ______ to be promoted. [     ]A. is going B. are going C. has been going D. have been going
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