单项选择题

Between WTO and GATT

A．WTO and GATT govern the international trade at the same time.
B．WTO is the pre-existence of GATT.
C．GATT is the pre-existence of WTO.
D．GATT is more effective than WTO in some aspects.

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单项选择题

According to Hoyle and his friends at Cambridge

A．the explosion occurred much earlier than Lemaitre suggested.
B．it is hard to see how matter could be formed in this way.
C．the expansion of the universe is not a real one.
D．new material is continually being created.

单项选择题

What did Helen have to be careful to hide

A．Her lack of interest in history.
B．Her low opinion of her husband's writing.
C．Her dislike of her husband's admirers.
D．Her inability to understand his books.