OG详解-OG7 数学1 Q25

Choice D is correct. It’s given that the bar graph summarizes the charge, in kilowatt-hours (kWh), a battery received each day for 15 days. The height of each bar in the bar graph shown represents the number of days the battery received the charge, in kWh, specified at the bottom of the bar. The bar for a charge of 0 kWh reaches a height of 6. Therefore, the battery received a charge of 0 kWh for 6 of these days.
Choice A is incorrect. This is the charge, in kWh, that the battery received, not the number of days the battery received this charge. Choice B is incorrect. This is the number of days the battery received a charge of either 8, 16, or 23 kWh. Choice C is incorrect. This is the number of days the battery received a charge of 11 kWh.