选择题：简述利润分配的原则

Americans believe so much in moving ahead that they are _1_ researching, experim

Mr.Green.s good health is chiefly ________ proper diet and regular exercise. A.

认为情绪的中心在上枢神经系统的丘脑。由外界刺激引起感官的神经冲动传至丘脑，再由丘脑同时向上向下发出神经冲动，向上传至大脑，产生情绪的主以体验，向下传至交感神经，

Could you lend me some money? I'm very ______of cash at the moment.A needB short

These teachers try to be objective when they the integrated ability of their