导游词创作的一般思路按照先后顺序是开展文字创作、分析景点特征、收集景点资料、实地检验成果。
参考答案：错
甲状舌管囊肿
A．减慢心率、降低心肌收缩力、减少心肌耗氧量B．通过抑制钙离子进入冠脉、周围血管壁平滑肌细胞内而扩张冠脉及周围血管C．抑制血小板聚集D．改善心肌营养与代谢E．扩张冠脉及外周血管，减轻心脏负担
An important reason for constructing an investment policy statement is that it:()
A. minimizes the costs of portfolio construction.
B. ensures that managers outperform the performance benchmark.
C. includes a performance benchmark to judge manager performance.
