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The answer to the second question on page 6 of winter vacation homework, the first volume of the fourth grade of Jiangsu Education Edition.
Is it the second question of distinguishing right from wrong? If it is, it is 1, 2 wrong, 3 wrong and 4 pairs. If it is the second small problem in the knowledge enhancement area, it is that the minute hand rotates 30 degrees from 12 to 1, forming an acute angle.

The minute hand ranges from 12 to 6, forming a right angle.

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