第8题: [单项选择]() blow more or less constantly(except when monsoons prevail)throughout all seasons at a mean speed of around 14 knots and are generally strongest in the late winter. A. Trade Winds B. Winds of the temperate zones C. Monsoons D. Land and Sea Breezes 参考答案:A
第10题: [单项选择]肝囊肿的超声造影表现是() A. 动脉期或门脉早期病灶周边结节样或环形增强,后呈向心性充填 B. 动脉早期由中央向周边离心性"轮辐状"增强,门脉期持续增强 C. 在造影过程中无增强表现,呈边界清晰的三期无回声结节 D. 动脉早期瘤体完全增强,门脉期及延迟期呈低回声,"快进快出" E. 超声造影增强与周围肝组织表现一致,难以区分病变部位 参考答案:C