卫星通信系统中FEC指的是()。A.跳频 B.频率调制 C.场效应晶体管 D.前向纠

题型:单项选择题

问题:

卫星通信系统中FEC指的是()。

A.跳频

B.频率调制

C.场效应晶体管

D.前向纠错

考点:通信工程师监控试题监控试题题库
题型:单项选择题

品学兼优的阿杰曾经以班级第一名的成绩考入高中,经常助人为乐的他深受师生的喜爱,然而,自从结识了那些“新朋友”后,他就经常旷课、通宵上网吧,后来随“朋友”出入营业性歌舞厅寻找刺激,父母的冷漠,老师的训斥,同学的指责,使他更加放纵自己,为筹集资金,多次伙同“朋友”抢劫同学的钱财。为了寻求更大的刺激,他吃上了摇头丸,后来竟然发展为抢劫杀人,后被公安机关逮捕,最终伏法,他为自己的行为付出了惨重的代价。

分析上述材料,回答下列问题:

(1)阿杰的哪些行为属于一般违法行为?哪些行为属于法罪行为?

___________________________________________________________________________________________

(2)阿杰行为的发展过程给我们的教训和启示有哪些?

___________________________________________________________________________________________

(3)如果请你办一期有关预防违法犯罪内容的黑板报,请你设计一个主题并简述四个栏目的内容。栏目内容以问题形式出现。

主题:_____________________________________________________________________________________

栏目一:___________________________________________________________________________________

栏目二:___________________________________________________________________________________

栏目三:___________________________________________________________________________________

栏目四:___________________________________________________________________________________

题型:单项选择题

We all know that theme parks are places to have fun and amuse ourselves, but among so many exciting rides there are also some dangers, Make sure you know what the safety standards are for all the attractions at the park. If you do that , you will be safe and have fun.

Drink water. Believe it or not , dehydration-- when your body doesn’t have enough water--is the commonest cause of injuries at theme parks. Drinking water while you are at the park is not enough.You must make sure that you drink enough water before your visit.

Use your “common sense”. There are lots of people around , so make sure where your friends or family are .Also ,if you are walking and want to stop , make sure nobody is walking behind you. First step aside,then look behind and if you aren’t in anybody’s way,then stop.It might sound exaggerated(夸张的),but crashes between people can cause accidents.

Follow the instructions. The majority of theme parks have instructions for each ride. Some rides only allow people of a certain height. So make sure you are not too tall or too short before boarding any ride. Also, people with certain diseases or conditions are advised not to go on some rides. Do remember : If you are told not to go on a ride, then DON’T.

Do not ride with a bad atomach or if you’ve just eaten. Rides can make you ill because of their violent changes of direction and your lunch may end up on someone else’s head: surely not a very pleasant experience.

Have fun, relax, and be a little brave!

Some rides might look scary but theme parks are very safe places.

小题1:What is the leading reason for injuries at theme parks?

A.Snow

B.Dehydration

C.Fire

D.Crashes小题2:According to the author,____.

A.it doesn’t pay to go to theme parks

B.people can have lots of fun in theme parks

C.men are more interested in theme parks than women

D.shy people should not go to theme parks小题3:Which of the following will the author accept?

A.Children should notplay in theme parks.

B.One shouldn’t eat anything before riding.

C.One must always stay with his friends or family in theme parks.

D.One must read the instructions before playing in theme parks.

题型:单项选择题

血管系统介入放射学首选的监视手段?()

A.X线透视

B.DSA

C.超声

D.CT

E.MR

题型:单项选择题

下面哪些单板的拨码开关设置与El传输阻抗有关().

A、DTB

B、RDTB

C、IIA

D、IMAB

题型:单项选择题

以下各项中,( )是有关关税配额管理错误的表述。

A.在关税配额限额外按照配额外税率征税
B.与许可证实现限制的目的相比,关税配额是一种相对数量的限制
C.关税配额是对进口商品制定关税配额税率并规定该商品进口数量总额
D.在关税配额限额内按照关税税额征税

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