A usual introduction includes a（）, a hand shake, an exchange of names and a few words about one’s work.In college, you

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A usual introduction includes a（）, a hand shake, an exchange of names and a few words about one’s work.In college, you should learn to be ( ).A:hug B:smile C:greeting D: kiss 答案: greetingA:dependent B:upset C:complacent D:independent 答案: independent