问题
选择题
Chemical pollution will bring about a threat to agriculture and food chain, and ________ to human health.
A.frequently
B.significantly
C.steadily
D.consequently
答案
答案:D
副词辨析。A频繁地;N重要地;C稳定地;D所以,因而,因此;结合句意可知D正确。句意:化学污染给农业和食物链产生很大的威胁,因而对人类的健康也会有很大的威胁。