15. Worldwide demand for more _____ technology continues to grow.
A. subtle B. experienced C. sophisticated D. refined
sophisticated 復(fù)雜的、久經(jīng)世故的
subtle 巧妙的、黯宛的、不明顯的、不顯著的、細微的、精細的
sob 哭泣
sorrow 痛苦
experienced 有經(jīng)驗的
refine 提煉、提純
define 下定義、有限的
indefinite 無限的、不確定的
confine 限制
affinity 親密
