西藏的塔里木河, 全长2179公里,是中国最长的内流河。
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位于万里长江第一弯的虎跳峡是世界上落差最大的峡谷之一。
A. 对
B. 错
一般观赏瀑布多为仰视瀑布,从高处落下让人们仰视,而壶口瀑布却为俯视瀑布。
A. 对
B. 错
Which type of chart or graph is used to express the relationships or correlations between different variables?
A. Histogram.
B. Scatter plot.
C. Line graph.
D. Pie chart.
Which of the following words can be used to describe a stable pattern?
A. Spurt.
B. Tumble.
Constant.
D. Accelerate.