下列哪些属于基于划分的聚类算法 A: K-means B: K-modes C: K-means++ D: K中心点

What are group norms? ( ) A: Modes of behaviour that are acceptable to and shared by group<br/>members. B: Modes of behaviour that are shared by some members of the group. C: Modes of behaviour that challenge group values and beliefs. D: Modes of behaviour that are different of those of the other group<br/>members.

For a MDOF system, which one is needed to calculate its vibration frequencies? A: the mass matrix [M] B: the damping matrix [C] C: the stiffness matrix [K] D: the vibration modes

The four basic modes of payments are _______.

The four major modes of semantic change are _____. [ ]

modes appeared last in the chronological order?

What are the three modes of vocabulary development?

Among cargo transportation modes, which is NOT involved?

How much is the percent of air transportation in all modes? （）

For conventional configuration aircraft, which of the following modes are lateral-directional modes A: Roll-subsidence mode B: Dutch roll mode C: Spiral mode D: Short-period mode E: Phugoid mode