单项选择题
Overlord is a code name for（）
A.American lend-lease assistance to the Soviet Union B.the summit conference at Teheran C.the allied landing at Normandy,France in 1944 D.the North African campaign
单项选择题 American war time objectives were（）
单项选择题 The consequence of the three neutrality acts of the United States was（）
单项选择题 What was the main cause of the Second World War?（）
