What does the word "flip" (Line 6, Para. 2) mostly probably mean？
A. It means to "decline".
B. It means to "fluctuate".
C. It means to "intensify".
D. it means to "reverse".
【B19】
A. mindset
B. mindsets
C. attitudes
D. manners
【B12】
A. managed
B. intended
C. sought
D. attempted
港口码头用地指用于人工修建的客运、货运、捕捞及工作船舶停靠的场所及其附属建筑物的用地，包括常水位以下部分。()
A. 正确
B. 错误
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