In times of economic difficulty, corporate budgets for research and development are often

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What is the passage mainly about？A．Hard economic times in France.B．People"s Christmas wish

The process of rescuing trapped miners is slow due toA．the difficulties of getting down in

At a time of this economic crisis, our _____ should be very clear about what we need t

Some of the students in this class seem （) to help those who have difficulties in their studies.

During times of war or economic ______ many people convert their wealth into precious ston