郑州大学 2022_01_12 每日一练
Which are correct when you do CPR? ()
A. Never stops until help comes
B. Turn the head to the side and clean the vomiting
C. Ensure the environment is safe enough before CPR starts
D. Do the CPR for children in the same way as for adults
下列哪些关于H-O理论的说法是正确的()。
A、贸易发生的根本原因是两国的要素禀赋差异
B、贸易发生后对两国是互惠互利的
C、两个国家的贸易模式不确定
D、劳动丰裕的国家出口资本密集型产品
E、劳动丰裕的国家出口劳动密集型产品