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【简答题】
A well-known speaker started his speech by holding up a $20 bill. In the room of 200, he asked, “What is this piece of 1 and is it worth anything?” Hands started going up. “It is a $20 bill, encashable(可兑现的) in international and national 2 .”replied one of the 3 who raised their hands. The speaker continued, “I am going to give this $20 to one of you, but first, let me do this.” He continued to crumple the 20 dollar bill using both his hands. He then 4 it and asked, “Who still wants it?” Still the hands were up in the air. “Well,” he said, “what if I do this?” He dropped it on the 5 and started to step on it. He picked up the crumpled and 6 bill and said, “Now, who still wants it?” 7 went back into the air. “I think this bill is still 8 its value”, said a young man in an unsure 9 . “We can still use the bill to 10 goods worth 20 dollars,” said the other people. “My friends, you have all learned a very 11 lesson in this exercise that we are just through with. You’ve 12 that I can crumple the $20 bill during the process as the effects can be seen clearly. 13 , no matter what I did to the piece of paper, you were 14 in your mind that my actions did not actually decrease its 15 . It was still worth $20.” “Many times in our lives, we feel like as if we are 16 , crumpled, and ground into the dirt by the decisions we make and the circumstances that come our way. We feel as though we are 17 ; but no matter what happened or what will happen, please 18 , you will never lose your value.” Values that you keep in your heart will always 19 you from a difficult situation. Dirty or clean, crumpled or not, you are still priceless to those who love you. The worth of our lives comes, not in what we do or who we know, but by ...WHO WE ARE.” “You are 20 — don’t ever forget it.” 小题1: A.paper B.advice C.information D.luck 小题2: A.organizations B.flights C.markets D.conferences 小题3: A.family B.teachers C.speakers D.audience 小题4: A.hid B.bought C.carried D.unfolded 小题5: A.square B.beach C.ground D.playground 小题6: A.thin B.dirty C.new D.clear 小题7: A.Hands B.Books C.Heads D.Smoke 小题8: A.losing B.reducing C.increasing D.holding 小题9: A.sound B.voice C.noise D.shout 小题10: A.deliver B.buy C.sell D.produce 小题11: A.boring B.difficult C.valuable D.painful 小题12: A.heard B.seen C.forgotten D.doubted 小题13: A.However B.Therefore C.Besides D.Otherwise 小题14: A.sure B.curious C.proud D.sad 小题15: A.price B.growth C.value D.size 小题16: A.dropped B.turned C.looked D.talked 小题17: A.important B.confident C.selfish D.useless 小题18: A.accept B.argue C.remember D.decide 小题19: A.leave B.search C.save D.beat 小题20: A.especial B.normal C.ordinary D.special
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【单选题】在密集城区基站间距较小的情况下,以下关于天线选择的原则说法不正确的是:()
A.
极化方式选择:由于市区基站站址选择困难,天线安装空间受限,建议选用双极化天线;
B.
天线增益的选择:为了加强覆盖,尽量提高信号强度,需要选用18dBi以上的高增益天线;
C.
方向图的选择:在市区一般选用定向天线;
D.
半功率波束宽度的选择:为了能更好地控制小区的覆盖范围来抑制干扰,市区天线水平半功率波束宽度选60~65°。
【单选题】对于在城区的地方,由于基站分布较密,要求单基站覆盖范围不能太大,希望尽量减少越区覆盖的现象,减少基站之间的干扰,提高频率复用率,以下天线选择原则描述错误的是:()
A.
通常选用水平面半功率波束宽度为65°的天线,一般不采用90°以上天线;
B.
根据目前天线型号,建议市区天线增益选用15dBi。对于城市边缘的基站,如果要求覆盖距离较远,可选择较高增益的天线,如17dBi、18dBi;
C.
由于市区基站站址选择困难,天线安装空间受限,一般建议选用双极化天线;
D.
尽量采用半功率波束宽度90°、105°/中、高增益/单极化空间分集天线。
【单选题】在耻骨上缘,下腹中部触及扁圆形、圆形块物,下列哪一种情况不属于膀胱胀大()
A.
截瘫
B.
腰椎麻醉后
C.
前列腺肥大
D.
昏迷状态
E.
妊娠妇女
【单选题】城市中有一块空地,目前未作任何使用,因此这块空地没有价值。( )
A.
正确
B.
错误
【简答题】由于市区基站站址选择困难,天线安装空间受限,建议选用()天线。
【单选题】下列哪块骨不属于扁骨?( )
A.
顶骨
B.
胸骨
C.
肋骨
D.
骶骨
【多选题】在密集城区基站间距较小的情况下,以下关于天线选择的原则说法正确的是:()
A.
极化方式选择:由于市区基站站址选择困难,天线安装空间受限,建议选用双极化天线;
B.
天线增益的选择:为了加强覆盖,尽量提高信号强度,需要选用18dBi以上的高增益天线;
C.
方向图的选择:在市区主要考虑提高频率复用度,因此一般选用定向天线;
D.
半功率波束宽度的选择:为了能更好地控制小区的覆盖范围来抑制干扰,市区天线水平半功率波束宽度选60~65度。
【单选题】阴阳的最初涵义指的是
A.
月亮圆缺
B.
日光向背
C.
气候冷热
D.
空气燥湿
E.
性别雌雄
【简答题】某社区拟筹资金2000元,计划在一块上、下底分别是10m,20m的梯形空地上种植花木(如图),他们想在△AMD和△BMC地带种植单价为10元/m 2 的太阳花,当△AMD地带种满花后,已经花了500元,请你预算一下,若继续在△BMC地带种植同样的太阳花,资金是否够用?并说明理由。
【多选题】钻削工件过程中,如果钻头上缠有铁屑,应如何应对?()。
A.
严禁用手拉
B.
停车后用刷子或铁钩清除
C.
可以用手拉
D.
不停车时用毛刷清理
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