This year marks the 70th anniversary of a campaign that introduced tea v (品种) from South China to North China, ending the absence of tea plantations in the northern part of the country.

1. This year marks the 70th anniversary of a campaign that introduced tea v (品种) from South China to North China, ending the absence of tea plantations in the northern part of the country.

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1. Language is one of the (factor) that affect cultural exchange among countries.

语法填空（单句）容易

2. A war (injure) has made his left hand stop functioning. （所给词的适当形式填空）

语法填空（单句）容易

3. It takes a lot of time and e to get an exhibition ready.

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