急性细菌性痢疾黏膜溃疡形成的原因是()。
A.血栓形成
B.细菌毒素
C.血液循环障碍
D.机械性损伤
E.中性粒细胞释放的蛋白酶使假膜溶解脱落
参考答案:E
“水循环示意图”中表示我国夏季风的箭头是
A、①
B、④
C、⑤
D、③
Compared to investors with long investment time horizons, investors with short investment time horizons most likely require:()
A. Less liquidity and less emphasis on capital appreciation.
B. Less liquidity and greater emphasis on capital appreciation.
C. More liquidity and less emphasis on capital appreciation.