的20年,所有太陽的變化都趨向使氣候向相反的方向變化,但卻要去解釋觀察到的全球平均溫度上升的現象"。 Abbot, C. G. Solar Variation, A Weather Element (PDF). PNAS. 1966, 56 (6): 1627–1634. doi:10.1073/pnas
of sex. Continuum. 2000: 166 [2012-11-04]. ISBN 0826412408. A common variation is 'tribadism,' where two women lie face to face, one on top of the other