【題目】_______the virtual world of Real Cine， the headsets even have small openings _______ smells to match the environment.

A. Adding to；give out B. Added to；give off

C. To be added to；giving off D. To add to；giving out

【答案】D

【解析】非謂語(yǔ)動(dòng)詞和動(dòng)詞短語(yǔ)。句意：給Real Cine錦上添花的是，耳機(jī)上甚至有一些小孔，可以散發(fā)出與環(huán)境相匹配的氣味。表示目的應(yīng)該用動(dòng)詞不定式，排除A、B；耳機(jī)上的小孔釋放氣味，這給Real Cine虛擬世界錦上添花，兩者是主動(dòng)關(guān)系，因此不用不定式的被動(dòng)形式，排除C；give off發(fā)出，釋放；give out用完，宣布，分發(fā)，散發(fā)，釋放；openings和give out是主謂關(guān)系，即小孔散發(fā)出......，應(yīng)該用現(xiàn)在分詞表示伴隨狀況，故選D。

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