The passage mainly tells us ________. Which of the following is not true according to the passage.?

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问题 The passage mainly tells us ________.
Which of the following is not true according to the passage.?

选项 A、Samuel F.B.Morse invented not only the electric telegraph but also telegraph code.
B、The Morse code can be used for communication by telegraph cable or radio.
C、The Morse code is the only telegraphic code in world.
D、When the ships are on the sea, radio operators often use the Morse code.

答案C

解析文章第四段说明了摹斯电码不是世界上惟一的电报代码。故本题答案为C。

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本试题收录于：公共英语二级笔试题库公共英语（PETS）分类

公共英语二级笔试

公共英语（PETS）

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The passage mainly tells us ________. Which of the following is not true according to the passage.?

公共英语二级笔试

公共英语（PETS）

Wheredoesthisconversationmostprobablytakeplace?

Martin:IworknotbecauseIlikeitbutthatIhaveto,soIoftencounttheminutesuntilstoppingworkorholidays.Howev

DearHilda,I’vejustheardofmymotherhassuddenlybeen【M1】______takenill,andI’dliketogoands

Thispassagemainlyfocuseson______.WhichofthefollowingisNOTtrue?

—______areyoutryingtoprovetopolice?—WhereIwaslastnight.

Withouttheatmosphere,therewouldbenoweather,nowind,rain,snow,orclouds.Airisallaroundus;weliveatthebottomo

Thefactoryproduceshalfamillionpairsofshoeseveryyear,80%______aresoldabroad.

HowIwishJohnrecognizedthefactthathe______inthewrong.

A、criminalsaredifficulttotraceinlargepopulationsB、peopledonotcommunicatewiththeirneighborsC、peoplefeelanonymous

OnThursday1willhavetodecidewhat1wantmyselfto【76】______dooveraweekend．Iamthinkingofmakingatrip

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A、舒喘灵B、氨茶碱C、激素D、色甘酸二钠E、异丙托溴胺主要副作用是口腔真菌感染和引起咳嗽的是

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在完成同样运动负荷时，动用心输出量潜力越多，心跳频率(_)越快，指数越低，心功能水平越_。