Question

    the whole process for the studies of cancer took more than a year, the technology is moving so fast that it will soon take just weeks．

A．How

B．Because

C．If

D．While

Answer 1

D

试题分析：句意：虽然研究癌症的整个过程已经耗时近一年多，但是技术发展如此之快以至于很快就用不了几周的时间就有进展了。How 怎样，引导方式状语从句；Because因为，引导原因状语从句；If引导条件状语从句；While 当….时，尽管，引导让步状语从句。
考点: 考查连词的用法。