2. What happened in 1939? In 1939 __________________________________________________________.
2. What happened in 1939? In 1939 __________________________________________________________.
The war broke out （） A: suddenly in 1939 in Poland B: in 1939 suddenly in Poland C: suddenly in Poland in 1939 D: in Poland in 1939 suddenly
The war broke out （） A: suddenly in 1939 in Poland B: in 1939 suddenly in Poland C: suddenly in Poland in 1939 D: in Poland in 1939 suddenly
The war broke out ___ . ( ) A: suddenly in 1939 in Poland B: suddenly in Poland 1939 C: in 1939 suddenly in Poland D: in Poland in 1939suddenly
The war broke out ___ . ( ) A: suddenly in 1939 in Poland B: suddenly in Poland 1939 C: in 1939 suddenly in Poland D: in Poland in 1939suddenly
总结了自1939
总结了自1939
喷气飞机是____年在____首次出现的？ A: 1941 英国 B: 1939 英国 C: 1941 德国 D: 1939 德国
喷气飞机是____年在____首次出现的？ A: 1941 英国 B: 1939 英国 C: 1941 德国 D: 1939 德国
（）年：《苏德互不侵犯条约》。 A: 1937 B: 1939
（）年：《苏德互不侵犯条约》。 A: 1937 B: 1939
September 1939 saw the ____ of the Second World War.
September 1939 saw the ____ of the Second World War.
World War II was a global military conflict that took place between ______. A: 1937 and 1949 B: 1938 and 1939 C: 1939 and 1945 D: 1938 and 1941
World War II was a global military conflict that took place between ______. A: 1937 and 1949 B: 1938 and 1939 C: 1939 and 1945 D: 1938 and 1941
（）是一种开放式的协议，只定义了如何实现，而没有定义实现什么，应用比较广泛。 A: CANOPEN B: CAN1939 C: PROFI-BUS D: INTERBUS
（）是一种开放式的协议，只定义了如何实现，而没有定义实现什么，应用比较广泛。 A: CANOPEN B: CAN1939 C: PROFI-BUS D: INTERBUS
钱学森1939年在（）获得航空、数学博士学位。
钱学森1939年在（）获得航空、数学博士学位。