He was so busy preparing for the high school entrance exam that ．（ ）
| A． |
he had enough time to watch football matches every day |
| B． |
he was free enough to go shopping online |
| C． |
he had no time to do sports every day |
相关试题
He was so busy preparing for the high school entrance exam that ．（ ）
| A． |
he had enough time to watch football matches every day |
| B． |
he was free enough to go shopping online |
| C． |
he had no time to do sports every day |
,则经过点M
的切线方程为（）
中，
，
面
，垂足为
，则点
的（）
（）
上单调递增
在区间(0,1)内的零点个数是（）
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