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【简答题】
已知函数f（x）=mx 3 +nx 2 的图象在点（-1，2）处的切线恰好与直线3x+y=0，若f（x）在区间[t，t+1]上单调递减，则实数t的取值范围是______．
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举一反三
【多选题】秦始皇封禅泰山的意义是什么?
A.
扩大了封禅的社会影响，提高了封禅大典的神圣性
B.
封禅泰山使秦王朝的宗教完成了由多神崇拜 (如秦的四帝祭祀)向一神崇拜的转变，有利于全国思想的统一
C.
扩大了齐鲁文化的影响，促进了齐鲁文化向华夏大地的传播和渗透
【简答题】Finally, some good news about airplane travel. If you are on a plane with a sick passenger, you are unlikely to get sick. That is the 1) of a new study that looked at how respiratory (呼吸道) viruses 2) ...
【简答题】Translate the following sentences into Chinese. 1 Passengers continuing to other cities with HNA should wear the name tag of transferring passenger。 2 Please be careful when opening the overhead bins ...
【判断题】儒家的宗教性最终要为人文。也就是说,人和天地、祖宗的沟通,最终还要回到现实的伦理秩序中来,祭祀祖宗是为了强化家族之间的团结,封禅大典是为了巩固皇权的绝对权威,拜孔子也是为了修身成一个有德之人。
A.
正确
B.
错误
【简答题】Finally, some good news about airplane travel. If you are on a plane with a sick passenger, you are unlikely to get sick. That is the 1 of a new study that looked at how respiratory ( 呼吸道 ) viruses 2 ...
【简答题】Finally, some good news about airplane travel. If you are on a plane with a sick passenger, you are unlikely to get sick. That is the 1 of a new study that looked at how respiratory ( 呼吸道 ) viruses 2 ...
【简答题】请在答案里直接写入大写字母 Finally, some good news about airplane traverl. If you are on a plane with a sick passenger, you are unlikely to get sick. That is the 1 of a new study that looked at how respiratory(呼吸道...
【单选题】综合满意度指数CSI四分位图法中以重要程度标准化为横坐标、以满意程度标准化为纵坐标在直角坐标上画出散点图,坐标轴将直角坐标平面分为四个象限,其中优势区为( )
A.
第一象限
B.
第二象限
C.
第三象限
D.
第四象限
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