问题
选择题
Science and technology have in important ways __________ the improvement of agricultural production.
A．contributed to
B．resulted from
C．carried off
D．handed over
答案
答案：A
这题考查词组辨析：contributed to导致，resulted from源于，carried off夺走， handed over交付，句意是：科技在一些重要的方面有助于农产品的改善。选A。