A.Tobacco stocks also perked up as investors discounted fears of litigation(诉讼) from the US B. So far，109 countries have signed it， and 12 have ratified it. C. The impact of the treaty could be huge. D. Countries that ratify(批准) it would be required to enact strict tobacco control policies. E.The treaty calls for higher tobacco taxes， restrictions on smoking in public places， and more promotion of tobacco prevention and cessation programs. F. The Senate must still approve the treaty before the US can implement its provisions.
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