社会系统学派大师巴纳德认为,社会得以正常运转的前提条件是()
A.协作
B.决策
C.权变
D.能率
参考答案:A
一肝癌患者,突然右上腹疼痛一天,腹腔积液迅速增加,伴心悸、头晕。BP 80/60mmHg,急抽腹水检查为血性腹水。首先考虑哪种情况
A.肝癌合并细菌性腹膜炎B.肝功能不全引起腹水C.癌性腹膜炎D.肝癌结节破裂出血E.急性心功能不全
The following information relates to the distribution of monthly returns from a diversified investment portfolio:
The distribution of monthly returns is best described as:()
A. positively skewed with a long tail on the left side.
B. negatively skewed with a long tail on the left side.
C. positively skewed with a tong tail on the right side.