Traditional Chinese Medicine is a great （）for our nation.

In face of （）failure，it is the most important to keep up（）good state of mind.

A.不填；a
B.a；不填
C.the；a
D.不填；the

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It was only with the help of the local guide（）.

A.was the mountain climber rescued
B.that the mountain climber was rescued
C.when the mountain climber was rescued
D.then the mountain climber was rescued

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