1.选择题- (共12题)
1.无线电广播发射的基本原理是：先把声音转变成{#blank#}1{#/blank#}，并把它加载到从振荡器中得到的{#blank#}2{#/blank#}电流上，再通过天线产生{#blank#}3{#/blank#}发射到空中．
4.在广播电台，话筒把播音员的{#blank#}1{#/blank#}信号转换成{#blank#}2{#/blank#}信号，然后用{#blank#}3{#/blank#}把音频信号加载到高频{#blank#}4{#/blank#}上，再通过{#blank#}5{#/blank#}发射到空中去．
5.在广播电台，话筒把播音员的{#blank#}1{#/blank#}信号转换成{#blank#}2{#/blank#}信号，然后用{#blank#}3{#/blank#}把音频信号加载到高频{#blank#}4{#/blank#}上，再通过{#blank#}5{#/blank#}发射到空中去．
6.在广播电台，话筒把播音员的{#blank#}1{#/blank#}信号转换成{#blank#}2{#/blank#}信号，然后用{#blank#}3{#/blank#}把音频信号加载到高频{#blank#}4{#/blank#}上，再通过{#blank#}5{#/blank#}发射到空中去．
7.如图所示，是我们听到中央人民广播电台新闻的过程示意图，则图{#blank#}1{#/blank#}是电台的发射示意图，图{#blank#}2{#/blank#}是收音机的接收示意图．
11.以下是无线电广播接收过程的几个步骤，其合理的顺序是{#blank#}1{#/blank#}．
A．调谐选择所需要接收的电磁波 B．接收无线电波
C．检波获得声音信号电流 D．耳机放音．
12.某学生家长为缴纳该学生上大学时的教育费，于2003年8月20号从银行贷款a元，为还清这笔贷款，该家长从2004年起每年的8月20号便去银行偿还确定的金额，计划恰好在贷款的m年后还清，若银行按年利息为p的复利计息（复利：即将一年后的贷款利息也纳入本金计算新的利息），则该学生家长每年的偿还金额是（ ）
2.单项选择- (共11题)
13.
My daughter often makes a schedule to get herself ________ of what she is to do in the day.
| A．remind | B．to remind |
| C．reminded | D．reminding |
14.
Before he started work, I asked the builder to give me a(n)_______ of the cost of repairing the roof.
| A．estimate | B．value | C．announcement | D．evaluation |
15.
________ on-going division between English-speaking Canadians and French-speaking Canadians is _______ major concern of the country.
| A．The;/ | B．The; a | C．An; the | D．An; / |
16.
----Is this raincoat yours? -----No, mine______ there behind the door.
| A．is hanging | B．has hung | C．hangs | D．hung |
17.
-----What’s wrong with him?
-----The picture he came across ________his memory of a sad story in his childhood.
-----The picture he came across ________his memory of a sad story in his childhood.
| A．set off | B．took off | C．put off | D．gave off |
18.
They _______ all the details of the plan time and again to make sure that the project went smoothly.
| A．got through | B．got up | C．went through | D．went up |
19.
The man fell to the ground, his left foot_____ and blood ____ down from his mouth.
| A．breaking;running | B．broken;running |
| C．breaking ; run | D．broken; run |
20.
The music, ___ which the active elderly were dancing, sounded a bit familiar ____ me.
| A．to; to | B．from; with | C．to; with | D．at; to |
21.
In the summer, large crops of fruit may be_______ by freezing or bottling.
| A．reserved | B．deserved | C．served | D．preserved |
22.
It is the driver rather than the children ______responsible for the accidents.
| A．is | B．are | C．that is | D．who are |
试卷分析
-
【1】题量占比
选择题:(12道)
单项选择:(11道)
-
【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：1
5星难题：0
6星难题：7
7星难题：0
8星难题：3
9星难题：0