题目内容

A．By air.B．By sea.C．Either by air or by sea.D．Neither by air nor by sea.

A. By air.
By sea.
C. Either by air or by sea.
D. Neither by air nor by sea.

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A．Planes.B．Cars.C．Buses.D．Ships.

A. Planes.
B. Cars.
C. Buses.
D. Ships.

When he was young, his family left Germany for Italy to send him to the world-famous university and gave him more advanced education.

A. Y
B. N
C. NG

The significance of Einstein' s theory was that it helped the invention of atomic bomb.

A. Y
B. N
C. NG

Einstein' s theory is easily understandable after it was formed at that time.

A. Y
B. N
C. NG