皮皮学，免费搜题
登录
搜题
【单选题】
【图片】电路如上，下面描述不正确的是A.
AD7520 为数 - 模转换器。
B.
上面的电路中，集成运放必不可少。
C.
上面的电路中， -8V 的输入信号应尽量精确。
D.
以上描述至少有 1 个不正确。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】贸易逆差是指一个国家或地区( )。
A.
一国在一定时期内出口贸易总值大于进口贸易总值
B.
一国在一定时期内转口贸易总值小于过境贸易总值
C.
一国在一定时期内出口贸易总值小于进口贸易总值
D.
一国在一定时期内复出口贸易总值小于复进口贸易总值
【单选题】Which of the following terms is the definition of entity.
A.
Path of a transaction through a dataprocessing system from point of origin to final output, or backward from final output to point of origin
B.
Characteristics of interest that need to be stored
C.
Portion of a data record that contains the data value for a particular attribute, like a cell in a spreadsheet
D.
An item about which information is stored
E.
Contents of a specific field, such as “George” in a name field
F.
Fields containing data about entity attributes, like a row in a spreadsheet
【单选题】我们进行改革开放的方向是正确的,信念是坚定的,步骤是稳妥的,方式是渐进的,取得的成就是巨大的。
A.
Our direction of the reform and opening up is correct, the conviction is firm, the step is steady and the manner is gradual and the achievements are great.
B.
We are going in the right direction, firm in conviction, steady in our steps and gradual in our approach when carrying out the reform and opening up and we have achieved tremendous success.
C.
We are correct in the reform and opening up. the conviction is firm with the steady step and the gradual manner and the achievements are great.
【单选题】Je ne vous croirai pas, __________ vous disiez.
A.
Qui que
B.
Quoi que
C.
Où que
D.
Quel que
【单选题】Despite the great achievements made by China over the past decade or so, many problems remain to be solved.
A.
不顾过去十多年里中国已作出巨大贡献,他们仍留许多问题来解决。
B.
尽管中国在过去的十几年中取得了伟大的成就,有许多问题仍然亟待解决。
C.
在过去十年多的时间里,显然中国取得了巨大进步,但仍有许多问题要解决。
D.
虽然在过去的十几年里,已经取得了巨大成就,中国存在的问题仍然不少。
相关题目：