题目内容

We can’t find images , such as graphs, maps, photos, and diagrams in the full-text database.

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In ScienceDirect search,gro?t finds "grout" or "groat", but not "groundnut" or "grommet" .

Search strategy"Heart pre/2 attack" is the same as"Heart w/2 attack".

Use Asterisk (*) Replace zero or more characters in a search word.

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