定位:in Tawahka society, kinship ties are a more important indicator of this than are legal property rights, so researchers measured it by a household's duration of residence in its village.
AC犹豫很久,还是选了A。总结一下现有讨论:
1. better control of other infections such as---后面举例的就应该是control的手段 如果是better control of such infections as--后面举例的就应该是infection,非划线部分的两个例子是感染,所以A的结构是肯定不对的
2. A使用what而C使用something,两者在语法上没错,但what强调的是某个特定的事,something没有强调特定的事;此外,A选项的the other使用错误,正确的结构应该是one ... the other ...。此外,the other 和 such as是不兼容的,正确的表达应该是of other infections such as ...
(D) simultaneously while语意重复。
有一题,while和at the same time共存,所以应该不是语义重复的问题,而是simultaneously没有就近修饰