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Which of the following statements are wrong? (Multiple Choice)

Which of the following statements are wrong? (Multiple Choice)
A . The main lobe direction of the antenna points to the high traffic density area, which can enhance the signal strength of the area and improve the call quality;
B. The cross-covering depth of adjacent antennas in urban areas is not more than 10%
C. The cross-covering depth between adjacent cells in suburbs, towns and other places should not be too deep, and the angle between the antennas of adjacent sectors of the base station is not more than 60°;
D. To prevent cross-regional coverage, the main lobe of the antenna in a dense urban area should be parallel to a straight street.

Answer: CD

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