近日，中央军委某领导人会见来访的美国国防部长莱昂·帕内塔时表示：“中国军队维护领

在物流系统中引入机械化、自动化、电子计算机技术的应用、通信技术、网络的建立，是为了实现（）的目

标。

A.速度经济

B.降低成本

C.规模经济

D.范围经济

关于交流电路中有功功率P、无功功率Q和视在功率S之间的关系，正确的是（）。

A.A

B.B

C.C

D.D

A 34-year-old client at 32 weeks' gestation tells the nurse that her baby will be sick because she saw a dead dog on the road yesterday. What's the best response by the nurse ？（）

A．"Your baby will be fine. That's just superstition. "

B．"Don't worry. We'll make sure your baby is okay. "

C．"I can see that you are concerned. Let's talk about what's bothering you. "

D．"Perhaps so. Your baby should be seen by a physician as soon as it's born. "

对心室颤动患者，每延迟电击除颤1min，死亡率可增加

A．3％～5％

B．5％～7％

C．7％～10％

D．10％～13％

E．15％～20％

饭后早期胰岛素分泌不足，饭后后期水平居高不下致低血糖（）

A.Addison病

B.糖原贮积症

C.肝硬化

D.腹膜外肿瘤

E.NIDDM早期