这是拟投稿的期刊论文的摘要请进行润色：This paper explore the correlation of the fractional variation of the ionizing continuum and CIV BALs with different ionization levels First we classify 260 CIV BALs which show sign

This paper explores the correlation between the fractional variation of the ionizing continuum and CIV BALs with different ionization levels. Initially, we classify 260 CIV BALs, which exhibit significant equivalent width (EW) variations between two-epoch observations, into six groups (CIV00, CIVs0, CIVS0, CIVsa, CIVSa, and CIVSA) based on the presence of SiIV and/or AlIII BALs/mini-BALs in the corresponding BAL regions. We then plot the fractional EW variation of these BALs against the fractional variation of the continuum for each group. Our results reveal anti-correlations for the CIV BALs without AlIII BALs at corresponding velocities (CIV00, CIVs0, and CIVS0 groups), providing evidence for the widespread influence of ionizing continuum variability on the variation of HiBALs. Conversely, for CIV BALs accompanied by AlIII BAL/mini-BAL (CIVsa, CIVSa, and CIVSA groups), no significant correlation is detected. The absence of such a correlation does not rule out the possibility that variations in these low-ionization lines are caused by ionizing continuum variability, but rather suggests the influence of BAL saturation to some extent. This saturation effect is reflected in the EW distribution, where the CIVSA group (with a standard deviation σ=0.213 for the best-fitting Gaussian component) exhibits smaller absolute values compared to the CIV00 (σ=0.390) and CIVS0 (σ=0.357) groups. However, their Fcont distribution shows comparable wide ranges. In summary, the statistical analysis based on the fractional variation of BALs and the continuum demonstrates the ubiquitous effects of ionizing continuum variability on the variation of outflow absorption across a wide range of ionization levels and viewing inclinations