题目内容

大便下血,先便后血,以及吐血、衄血、妇人崩漏,血色暗淡,四肢不温,面色萎黄,舌淡苔白,脉沉细无力。选下列何方治疗最佳()

A. 导赤散
B. 十灰散
C. 小蓟饮子
D. 四生丸
E. 以上都不是

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减少和减轻造影剂不良反应发生的措施,错误的是()

A. 对具有高危因素的患者应特别注意
B. 选用离子型造影剂
C. 术前联合应用皮质激素和抗组胺药物
D. 尽量减少造影剂用量
E. 注意观察和及时处理

随机临床试验的主要优点是()。

A. 避免了观察者偏倚
B. 可证实本身是合乎道德的
C. 排除了参加者对不同治疗组群的自我选择
D. 登记了有代表性的病人
E. 导出了可适用于其他病人的结果

生殖细胞瘤与松果体瘤鉴别,以下哪一项CT表现有利于生殖细胞瘤的诊断()

A. 肿瘤位于三脑室后部
B. 肿瘤中度增强
C. 松果体钙化被肿瘤包围
D. 松果体钙化移位
E. 脑积水

After properly configuring multiple VLANs, an administrator has decided to secure its VLAN network. Which three steps are required to secure this environment? (Choose three.)()

A. If a port is connected to a foreign device make sure to disable CDP, DTP, RPR, PAgP, UDLP, and any other unnecessary protocols, and enable UplinkFast/BPDU guard on it.
B. Enable root guard feature to prevent a directly or indirectly connected STP-capable device from affecting the location of the root bridge.
Configure VTP domains appropriately or turn off VTP altogether to limit or prevent possible undesirable protocol interaction with regards to the network-wide VLAN configuration.
D. Set the native VLAN ID to match the port VLAN ID of any 802.1q trunk to prevent spoofing.
E. Disable all unused ports and place them in an unused VLAN to avoid unauthorized access.

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