本题考查1914年美国总统发表的声明。
On August 4, 1914, President Wilson issued an official statement proclaiming American neutrality. He said that the United States "must be neutral in fact as well as in name" and "we must be impartial in thought as well as in action."
1914年8月4日，威尔逊总统发表正式声明，宣布美国中立。他说，美国“在事实上和名义上都必须保持中立”，“我们在思想上和行动上都必须不偏不倚”。
故选择A选项。