第16题:[单选题]He asserted that nuclear power was a safe and non-polluting energy source. A.maintained
B.recommended
C.considered
D.acknowledged 参考答案:A 题干意为“他断言核能是一种安全而又无污染的能源。” 句中划线词意为“主张,断言”。A项maintain意为“主张,强调”;例句:He maintains that there are no short cuts to effective management.他断言,有效的管理没有捷径可走。B项意为“推荐”。C项意为“考虑”。D项意为“承认”。故选A。