Look at Petey-a knothead, a jitterbug, a guy who'll never know where his next meal is coming fro
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which the mind and body are considered integral parts of the whole being, and both aspects are exami
emotional stress can causes physical changes that lead ______
2010年全国用于试验发展的经费约占全国R&D经费的（）。
A. 85．4％
B. 84．7％
C. 83．5％
D. 82．7％
CBD：中央商务区
A. 中央处理器：CPU
B. CPI：生产者物价指数
CF0：首席执行官
D. CDC：中央数字计算机
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