治疗气血两虚型滑胎的代表方剂是：A．加味阿胶汤B．寿胎丸C．泰山磐石散D．补肾固冲丸

下列方程式表述正确的是的是（　　）

A．铁钉放入硫酸铜溶液中：Fe+3Cu²⁺=2Fe³⁺+3Cu

B．稀硫酸与氢氧化钡溶液反应：H⁺+OH^-+Ba²⁺+SO₄^2-=H₂O+BaSO₄↓

C．NaHCO₃的电离：NaHCO₃=Na⁺+H⁺+CO₃^2-

D．氢氧化铜与稀盐酸反应：Cu（OH）₂+2H⁺=Cu²⁺+2H₂O

汽车用的主要底板防护材料根据其对汽车行驶过程中的影响可分为（）。

A.高密度

B.低密度

C.高黏度

D.低黏度

Ian O’sullivan, CFA, is the owner and sole employee of two companies, a public relations firm and a financial research firm. The public relations firm entered into a contract with Mallory Enterprises to provide public relations services. According to the contract, O’Sullivan received 40000 shares of Mallory stock in payment for his services. Over the next 10 days, the public relations firm issued several press releases that discussed Mallory’s excellent growth prospects. O’Sullivan, through his financial research firm, also published a research report recommending Mallory stock as a buy According to the Standards of Practice Handbook, was O’Sullivan required to disclose his ownership of Mallory stock in the: Press release Research report （）①A. NoNo ②B. NoYes ③C. YesYes

A．① 

B．② 

C．③

1963年，斯坦福研究所的工程师Douglas Englebart（道格·恩格尔巴特）摸索出一种交互作用的方法，简化了不必要的操作，从此发明了（），连同他对超文本的研究，使他在1997年获得了图灵奖。

A.GUI技术

B.几何画板

C.手写板

D.鼠标

6个月小儿，人工喂养，体重5kg，腹部皮下脂肪0.2cm，皮肤弹性差，情绪不稳，睡眠不安，肌肉明显松弛，其最可能的诊断为

A．中度营养不良
B．轻度营养不良
C．重度营养不良
D．佝偻病
E．正常儿