Which two statements about the EIGRP DUAL process are correct?（）
An EIGRP route will go active if there are no successors or feasible successors in the EIGRP topology table.
B. An EIGRP route will go passive if there are no successors in the EIGRP topology table.
C. DUAL will trigger an EIGRP query process while placing the flapping routes in the holddown state.
D. A feasible successor in the EIGRP topology table can become the successor only after all the query requests have been replied to.
E. The stuck in active state is caused when the wait for the query replies have timed out.
F. EIGRP queries are sent during the loading state in the EIGRP neighbor establishment process.
不是长期大量应用肾上腺皮质激素引起的不良反应的是（）
A. 类肾上腺皮质功能亢进综合征
B. 诱发或加重感染
C. 促进生长发育
D. 骨质疏松、肌肉萎缩、伤口愈合迟缓
E. 消化系统并发症
在流行性出血热血液生化检查中，血肌酐浓度最高的是（）
A. 低血压休克期
B. 发热后期
C. 多尿移行期末
D. 多尿后期
E. 发热期
乘坐平巷人车或专列人车，上、下车时必须切断该区段架空线电源。
A. 正确
B. 错误
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