You also can choose from an array of strike prices and expiration dates depending on your appetite for risk.
你还可以从一系列行权价格和到期日中做选择，具体取决于你的风险承受意愿。
Cigarette smoking is a risk factor for a vast array of diseases including cancer, coronary heart disease, COPD and GI diseases.
吸烟是很多疾病的危险因素包括癌症、冠心病、COPD和消化系统疾病。
Cigarette smoking is a risk factor for a vast array of diseases including cancer, coronary heart disease, COPD and GI diseases.
吸烟是很多疾病的危险因素包括癌症、冠心病、COPD和消化系统疾病。
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