题目内容

[音频]Even if the participants know what that topic is, the host should give them a quick ________ before the discussion begins.

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[音频]An effective group discussion will involve all participants, so make sure to draw out everyone's ________ by encouraging quiet participants to share.

[音频]The host should ________ the discussion briefly when it reaches the end to make sure everyone understands the key points made.

个体工商户对其债务承担什么责任？

A. 无限责任
B. 有限责任

某校经济管理类的学生学习统计学的时间（x）与考试成绩（y）之间建立线性回归方程y=a+bx。经计算，方程为y=200-0.8x，该方程参数的计算

A. a值是明显不对的
B. b值是明显不对的
C. a值和b值都是不对的
D. a值和6值都是正确的