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问题 单项选择题

石灰稳定土基层分层施工时，下层石灰稳定土碾压完成后，在铺筑上一层石灰稳定土前（）。

A.需要1d养护期

B.需要7d养护期

C.需要15d养护期

D.不需要专门的养护期

答案

参考答案：D

单项选择题

患者男，45岁。因肝硬化合并门脉高压症收治入院。在等待手术治疗期间患者发生食管-胃底曲张静脉破裂出血。下列处理措施不当的是（）

A.立即平卧位，头偏向一侧

B.立即吸氧

C.立即安置双囊三腔管

D.立即给予止血药物

E.立即给予升压药物
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单项选择题

Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up （71） at the customer premise over slow （72） ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet （73）technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the host computers at the customer premise connect to the （74） or cable "modem" over a much faster medium such as Ethernet.It also means that multiple （75） can connect to the Internet through the same connection.

73（）

A．access

B．cache

C．cast

D．storage
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