填空题

Sleep, rest and (relax)（）are the best remedies for many headaches.

【参考答案】

relaxation

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填空题

If we (know)（）the basic principles, we should have controlled the process even better.

单项选择题

A．An old Chinese painter in the Qing Dynasty.
B．A modern Chinese painter.
C．A famous Chinese painter in the Qing Dynasty.
D．Not mentioned in the dialogu