下列哪个不是自愿报告的原则

风挡玻璃哪一层不允许有裂纹。

风挡玻璃外层发现划伤。

风挡玻璃内层发现划伤。

风挡玻璃哪一层不允许有掉块（CHIPS)。

风挡玻璃中心点发现小面积分层，且不影响视线，则：

风挡玻璃边缘处发现小面积分层，且不影响视线，则：

风挡玻璃发现气泡，且不影响视线。哪一层有气泡可接受：

a line of damage of any depth and length in the material which causes a cross-sectional area change. A sharp object usually causes it

a damage area of any size which results in a cross-sectional area change. It is usually caused by contact with a relatively sharp object which produces a continuous, sharp or smooth channel-like groove in the material.

a partial fracture or complete break in the material.