连续竞价制又称为静盘交易，是指在交易所交易池内由交易者面对面地公开喊价，表达各自买进或卖出合约的要求。（）
参考答案：错
Cross-sectional returns studies contend that:（）
A. all securities should have equal risk-adjusted returns because security prices should reflect all public information that would influence the security’s risk.
B. all securities should have equal risk-adjusted returns because security prices should not reflect all public information that would influence the security’s risk.
C. securities should not have equal risk-adjusted returns because security prices should not reflect all public information that would influence the security’s risk.
1岁小儿，血常规检查结果如下：Hb80g／L，MCV98fl，MCH33pg，MCHC32％。最适宜的治疗是（）
A.输血
B.脾切除
C.口服铁剂
D.口服维生素C
E.肌注维生素B12
