【单选题】急性肺水肿患儿吸氧时,湿化瓶中氧气通过酒精适宜的浓度是
【判断题】信用是一种借贷活动,在社会大分工的基础上产生。
【单选题】Why does the author mention the 'Forbes 400' in paragraph 3?
A.
To explain the meaning of the listing that appears every year
B.
To support the statement that most wealthy people inherit their money
C.
To cast doubt on the claim that family income predicts individual wealth
D.
To give examples of successful people who have modest family connections
【单选题】( )是指具有法的效力作用和意义的法或法律的外在表现形式。