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【简答题】
Fill in the blanks with the words given below. Change the forms where necessary. 1) Your application will not be ________ until you have paid the application fee. 2) I need a big ____. Could someone show me how to use this cell phone? 3) If you want to be a Red Cross ________, you can begin by learning some first aid skills. 4) Let’s _______ the chairs in a circle so that everyone can see each other easily. 5) Henry managed to finish his report and handed it in five minutes before the _______. 6) __________ by family and friends, Linda felt she was the happiest girl in the world. 7) It seems that the parents have assigned a ____ too difficult for their son, well beyond the ability of a seven-year-old. 8) This hotline(热线) is _______ 24 hours. You can make a phone call whenever you want. 9) Mary thought hard for something more _________ than cards and flowers as a Mother’s Day present. 10) He has kept up, even in his old age, the strange ____ of taking cold showers, even in extremely cold winter. 11) Both sides expressed the desire to cooperate(合作), but neither got ______ about how and when. 12) Those who wish to _______ in the business world will find this book very helpful. 13) My counselor _______ me to change my major(专业), which turned out to be key to my later success.
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【简答题】实验室以水为介质进行离心泵特性曲线的测定,在转速为2900rpm时测得一组数据为:流量3.5×10 -3 m 3 /s,泵出口处压力表读数为100kPa,入口处真空表读数为6.8kPa。电动机的输入功率为0.85kW,泵由电动机直接传动,电动机效率为52%。已知泵吸入管路和排出管路内径相等,压力表和真空表的二测压孔间的垂直距离为0.1m,试验水温为20℃。试求该泵在上述流量下的压头、轴功率和效率。
【多选题】根据病毒感染机体的过程及其在宿主体内滞留时间的长短,可将病毒感染分为:
A.
急性病毒感染
B.
慢性病毒感染
C.
潜伏感染
D.
持续性病毒感染
E.
慢发病毒感染
【判断题】导游人员讲解时将北京的王府井,与日本东京的银座进行比较讲解。这是运用同类相异类比的导游手法。
A.
正确
B.
错误
【单选题】该图中( )为软接头?
A.
1
B.
2
C.
3
D.
4
【简答题】5-6岁儿童学习和掌握的基本舞步有 、华尔兹步、溜冰步、跑跳步、 、秧歌十字步等。
【简答题】光传感器件分为哪四种?
【单选题】描述一个城市的发展和规划,适合使用的存储结构是()。
A.
顺序存储结构
B.
链式存储结构
C.
图结构
D.
树结构
【单选题】图中为雷达何种航标?
A.
雷达方位信标
B.
搜救雷达应答器
C.
雷达角反射器
D.
雷达应答标
【多选题】按照经济分工,企业有多种类型,主要有( )。
A.
生产性企业
B.
流通性企业
C.
服务性企业
D.
个人独资企业
E.
合伙企业
【判断题】华尔兹舞基本步法有左(右)并换步、左(右)转步、交叉步、侧行追步等。
A.
正确
B.
错误
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