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问题 多项选择题

在一个没哟使能MPLS倒数第二跳技术的BGP MPLS VPN组网中，私网报文抵达最后一跳PE时，下列说法正确的是（）。

A.报文只有一层MPLS标签头

B.报文有两层MPLS标签头

C.报文的两层MPLS标签值绝对不相同

D.报文的两层MPLS标签值可能相同

答案

参考答案：B, C

单项选择题

A school-aged child is admitted to the hospital with newly diagnosed, insulin-dependent diabetes mellitus. On admission his blood sugar is 180 mg/dL. His urine tests negative for ketones. He receives 10 units of regular humulin insulin subcutaneously half hour after admission. What should the nurse do next（）

A. Carefully regulate an intravenous solution of normal saline and insulin at 2. 5 hours after admission.

B. Encourage the child to drink at least 500 mL of a sugar-free clear liquid 1.5 hours after admission.

C. Begin intravenous administration of 5% dextrose in water 1 hour after admission.

D. Assess the child 2. 5 hours after admission for shakiness, feelings of anxiety, or decreased level of consciousness.
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单项选择题

一妇女，停经80天，3天前 * * 流血少量，不伴腹痛。今日流血骤然增加，量多，下腹阵痛难忍。检查子宫口开一指，胎膜突在宫口稍下方。下项除哪项处理外均正确

A．输液

B．备血待用

C．立即刮宫

D．手术时出血多不能用宫缩剂

E．刮宫术后预防感染
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