People do not know for sure when numbers came into use. It is not______for sure when numbers came into use.

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问题 People do not know for sure when numbers came into use. It is not______for sure when numbers came into use.

选项

答案known

解析

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本试题收录于：公共英语一级笔试题库公共英语（PETS）分类

公共英语一级笔试

公共英语（PETS）

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People do not know for sure when numbers came into use. It is not______for sure when numbers came into use.

公共英语一级笔试

公共英语（PETS）

[A]train[B]postoffice[C]coat[D]hotel[E]theatre[F]blackboard[G]umbrella

Howisacowboy’slife?

Howisacowboy’slife?

Howisacowboy’slife?

Hefoundhisfatherhardtounderstandbecausehisfatherwastooshortandthin.Hisfathereverhadaclosefriend.

ManyEnglishpeoplehavemealsaday.Peoplehavelunchat.

ManyEnglishpeoplehavemealsaday.InsomeEnglishhomesdinnercancome.

I’dliketo______twodoubleroomswithabathroom,please.

IsthatMrs.Blackspeaking?Yes,______?

______areallhighschoolstudents.

患者高血压病史多年，今晨猝然昏仆，不省人事，目合口张，鼻鼾息微，手撒肢冷，汗多，大小便自遗，肢体软瘫，舌萎，脉细弱或脉微欲绝。应选方

二氧化碳手提式灭火器的构件包括()。

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该病治当：晚期症见喘咳心悸，肢体浮肿，尿少，舌质淡胖，脉沉细，方选：

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若某大学分配给计算机系和自动化系的IP地址块分别为211．112．15．128／26和211．112．15．192／26，聚合后的地址块为()。

Westarttounderstandthattradingsuccessfullyisgoingtotakemoretimeandmoreknowledgethanwe______.

A、Focusingonthegrammarwhilespeaking.B、Usingthelanguagefirstandfocusingonthegrammarlater.C、Graspingthegrammarb

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[A]train[B]postoffice[C]coat[D]hotel[E]theatre[F]blackboard[G]umbrella

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Howisacowboy’slife?

Hefoundhisfatherhardtounderstandbecausehisfatherwastooshortandthin.Hisfathereverhadaclosefriend.

ManyEnglishpeoplehave______mealsaday.Peoplehavelunchat______.

ManyEnglishpeoplehave______mealsaday.InsomeEnglishhomesdinnercancome______.

I’dliketo______twodoubleroomswithabathroom,please.

IsthatMrs.Blackspeaking?Yes,______?

______areallhighschoolstudents.

患者高血压病史多年，今晨猝然昏仆，不省人事，目合口张，鼻鼾息微，手撒肢冷，汗多，大小便自遗，肢体软瘫，舌萎，脉细弱或脉微欲绝。应选方

二氧化碳手提式灭火器的构件包括()。

下列舌象变化提示病情好转的是

该病治当：晚期症见喘咳心悸，肢体浮肿，尿少，舌质淡胖，脉沉细，方选：

某患者，饮食稍有不慎即易呕吐，时作时止，纳呆，面色优白，倦怠乏力，喜暖畏寒，四肢不温，口干而不欲饮，大便溏薄，舌质淡，苔薄白，脉濡弱。治其治法是

“孤阴不生，独阳不长”主要说明了阴阳关系的哪一方面

有关合同担保的说法中正确的是()I．合同担保可由当事人本人做出Ⅱ．合同担保可由第三方做出Ⅲ．合同担保必须由第三方做出Ⅳ．合同担保可由公民个人和国家机关做出

若某大学分配给计算机系和自动化系的IP地址块分别为211．112．15．128／26和211．112．15．192／26，聚合后的地址块为()。

Westarttounderstandthattradingsuccessfullyisgoingtotakemoretimeandmoreknowledgethanwe______.

A、Focusingonthegrammarwhilespeaking.B、Usingthelanguagefirstandfocusingonthegrammarlater.C、Graspingthegrammarb

ManyEnglishpeoplehavemealsaday.Peoplehavelunchat.

ManyEnglishpeoplehavemealsaday.InsomeEnglishhomesdinnercancome.