After listening to a short passage about China's water situation, we have learned that there are the four sources of water pollution. Which one does not belong to the four（）
A. C. industrial spills
B. littering
C. D. agricultural runoff
D. A. manufacturing emissions
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修饰眉型时应注意眉头、内眼角、鼻翼成一垂直线，眉尾、外眼角、鼻翼成一直线（）
A. 是
B. 否
男士在购买第一套西装时，一般以黑色为最佳（）
A. 是
B. 否
______ one task, we started another one（）
A. B. To have completed
B. A. To complete
C. D. Being completed
D. C. Having completed
What does “tsunami” mean exactly（）
A. B. A large amount of earth and rocks falling down a cliff or side of a mountain
B. D. An extremely violent storm
C. A very large wave caused by an earthquake or volcanic eruption
D. A. A very and snowstorm with strong winds
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