某男，55岁，右下肢持续掣痛2天，疼痛难忍，以右下肢疼痛沿股后向小腿后外侧放射为主。

Corporate officers and directors commonly buy and sell, for their own portfolios, stock in their own corporations. Generally, when the ratio of such inside sales to inside purchases falls below 2 to 1 for a given stock, a rise in stock prices is imminent. In recent days, while the price of MEGA Corporation stock has been falling, the corporation’s officers and directors have bought up to nine times as much of it as they have sold.
The facts above best support which of the following predictions

A．The imbalance between inside purchases and inside sales of MEGA stock will grow even further.

B．Inside purchases of MEGA stock are about to cease abruptly.

C．The price of MEGA stock will soon begin to go up.

D．The price of MEGA stock will continue to drop, but less rapidly.

E．(E) The majority of MEGA stock will soon be owned by MEGA’s own officers and directors.

评价外科病人的营养状态，最简单而实用的指标是

A．近期体重下降程度和三头肌皮褶厚度

B．血清转铁蛋白和视黄醇结合蛋白

C．握力和三头肌皮褶厚度

D．近期体重下降程度和血浆白蛋白水平

E．氮平衡试验

把投资项目的成本构成按科目一一列出，然后对成本进行逐项分析，分别确定哪些成本项目属于固定成本，哪些属于变动成本，然后再把它们分别汇总后得出总固定成本和总变动成本属于分解方法中的( )。

A．线性盈亏平衡分析法

B．费用分解法

C．高低点法

D．回归分析法

2007年10月2日至11日在中国上海举行了( )。

A．夏奥会

B．特奥会

C．冬奥会

D．残奥会

非碱性水按钙、镁的分配情况分为（）和（）。