请教一到TPO12里的阅读题目

xhackj

◆We all know that many more people today are right-handed than left-handed. Can one trace this same pattern far back in prehistory? Much of the evidence about right-hand versus left-hand dominance comes from stencils and prints found in rock shelters in Australia and elsewhere, and in many Ice Age caves in France, Spain, and Tasmania. When a left hand has been stenciled, this implies that the artist was right-handed, and vice versa. Even though the paint was often sprayed on by mouth, one can assume that the dominant hand assisted in the operation. One also has to make the assumption that hands were stenciled palm downward—a left hand stenciled palm upward might of course look as if it were a right hand. Of 158 stencils in the French cave of Gargas, 136 have been identified as left, and only 22 as right; right-handedness was therefore heavily predominant.

It can be inferred from paragraph 1 that even when paint was sprayed by mouth to make a hand stencil

答案是the stenciled hand was the weaker hand

我怎么也看不出stenciled hand是weaker hand啊。。。 真奇怪。。。
请大大帮忙分析下。。

tbzx905

从此句When a left hand has been stenciled, this implies that the artist was right-handed, and vice versa.可看出

甜心俏女巫

能再解释的详细一些吗？这道题我也不明白，纠结了很久。。。