TF-IDF的概念

A、One opens the gift as soon as he is presented with it.

B、One invites people to visit his home but does not invite them to have dinner with him.

C、One does not make a second offer of drinks when the guests refuse the first.

D、One asks about personal health issues when he comes across his acquaintance.

A、人们对外表有伤痕的人会存在偏见

B、人们不会对外表有伤痕的人会存在偏见

C、自己猜测的他人的态度也会影响自己的看法

D、自己猜测的他人的态度不会影响自己的看法

A、安全

B、可靠

C、灵活

D、经济

A、登山

B、武术

C、游泳

D、慢跑

A、城市学校

B、行会学校

C、文法学校

D、修辞学校

A、when to begin a conversation

B、whose turn it is to speak

C、how to get a chance to speak

D、how to signal others to talk more

E、how to end a conversation