单项选择题

It is suggested in Par……

It is suggested in Par

A．2 that ______.A. academic mobility may enhance scientific researchB. academic mobility may promote interpersonal relationsC. scientific researchers may be subject to misunderstandingD. scientific researchers work in collaboration worldwide

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单项选择题A．they seem to be fun to beginnersB．they allow big winsC．they are easy to playD．big wins seem possible given enough time and money

A．they seem to be fun to beginners
B．they allow big wins
C．they are easy to play
D．big wins seem possible given enough time and money

填空题将to改成over。

填空题将refused改成denied。

填空题将However改成So。

填空题将mortality改成immortality。