在通信技术中,通信信道有点—点通信信道和 __________________通信信道两类。
参考答案:广播
解析:在通信技术中,通信信道的类型有两类:点—点通信信道和广播通信信道。
动词填空。
1. _____ your family _____ (read) books on Sundays?
2. I find your shoes over there. But where _____ (be) mine?
3. Look! The boy _____ (have) a kite in his hand.
4. Let's help the old man _____ (cross) the road.
5. Mike, _____ ( not fly) the kite here. It's dangerous.
6. Why_____ your sister _____ (wash) clothes every day? It's a good habit (习惯).
7. Would you like _____ (go) to the zoo this Sunday?
8. He _____ (not do) his homework on Friday evening. He does it on Saturday.
9. Mary enjoys (chat) on the Internet.
10. Mr. Zhang _____ ( teach) us English. We all like him.
患者女,36岁,已婚,大学,公务员。反复觉得浑身无力,恶心、反酸、打嗝、排粪次数多等胃肠道不适,皮肤刺痛、关节痛、背部和头颈酸痛,气短、胸痛,尿频,月经不调,怕烦、怕吵,心情不愉快,睡眠浅、多梦。一直在消化科、神经科、心内科、中医科、内分泌科、风湿科、妇科门诊就诊。胃镜、肠镜检查无异常。免疫检查无异常。血、尿常规检查无异常。血糖,血脂,肝、肾功能,电解质检查正常。甲状腺功能检查无异常。妇科检查无异常。内脏器官B型超声正常。颅脑CT和颈、腰椎MRI检查无异常。以上各科对症处理,服用多种药物都无效,也没有明确诊断。患者对以上各科检查和治疗不满意,担忧自己患了不治之症,四处找人帮助就医。因久治不愈,心情不好,睡眠困难,转心身科心理咨询。SDS和SAS轻度,HAMD评分15分,HAMA评分10分。单位人际关系一般,夫妻关系长期不好。
该患者可能诊断是()
A.恐惧症
B.强迫症
C.抑郁障碍
D.躯体形式障碍
E.人格障碍