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【多选题】
以下关于砂的筛分析试验步骤中叙述正确的是( )。
A.
用于筛分析的试样，试验前先将来样通过公称直径10.0mm的方孔筛，并计算筛余。
B.
称取准备好的烘干试样500g，置于按筛孔大小顺序排列的套筛的最上一只筛上。将套筛装入摇筛机中固紧，筛分15min。10min
C.
筛分取出后，按筛孔由大到小的顺序，在清洁的浅盘上逐一手筛，直到每分钟的筛出量不超过试样总量的0.1%时为止
D.
试样在各只筛子上的筛余量均不得超过计算得出的剩留量，否则该筛的筛余试样分成两份或数份，再次进行筛分，并以其筛余量之和作为该筛的筛余量。
E.
称取各筛筛余试样的质量，所有各筛的分计筛余量和底盘中的剩余量之和与筛分前的试样总量相比，相差不得超过1%；
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参考答案：
举一反三
【单选题】In the earliest stages of man’s development he had no more need of money than animals have. He was content with very simple forms of shelter from natural materials around him. he made his own rough to...
A.
all learnt to make by themselves the things needed.
B.
had to travel a lot to look for what they wanted
C.
wanted better things than those they themselves could provide
D.
no longer provided food and clothing for themselves
查看完整题目与答案
【简答题】Section A So far there have been discovered no limits to man’s capacity to learn.【76】From earliest times, however, men in positions of power or influence have suggested that the learning capacity of c...
查看完整题目与答案
【多选题】编码中对符号名的命名一般要求:
A.
标识符的命名要清晰、明了,有一定的实际意义,同时使用完整的单词或大家基本可以理解的缩写,避免使人产生误解
B.
命名中若使用特殊约定或缩写,则要有注释说明
C.
自己特有的命名风格,要自始至终保持一致,不可来回变化
D.
对于变量命名,尽量不要取单个字符(如i、j、k等),建议除了要有具体含义外,还要能表明其变量类型、数据类型等,但i、j、k作局部循环变量是允许的
E.
命名规范必须与所使用的系统风格保持一致,并在同一项目中统一
F.
名字不是越长越好
查看完整题目与答案
【单选题】某龙财毕业生拟在龙财设立永久性奖学金,每年拟发放20万元,若收益率为10%,则该毕业生应一次性投入本金的数额为( )
A.
100万元
B.
500万元
C.
1000万元
D.
200万元
查看完整题目与答案
【单选题】In the earliest stages of man’s development he had no more need of money than animals have. He was content with very simple forms of shelter from natural materials around him. he made his own rough to...
A.
man became more civilized
B.
there was not a marketplace for farmers and smiths to exchange their goods
C.
farmers hadn’t enough grain or meat to provide for skilled workers 。
D.
more and more goods which had no fixed exchange values appeared on the market. 。
查看完整题目与答案
【单选题】C#变量标识符命名规则错误的是
A.
变量标识符由字母、数字和下划线“_”组成
B.
不能包含包含空格、标点符号、运算符等其它符号
C.
变量标识符不区分大小写
D.
变量标识符必须由字母或下滑线“_”开头,不能以数字开头
查看完整题目与答案
【单选题】下面关于变量的命名规则错误的是:
A.
以字母、下划线或美元符 “＄”开始的，并包含这些字符和数字的字符序列。
B.
关键字不能作标识符。
C.
变量名可以以数字作为开头。
D.
标识符是大小写相关的，且可以任意长，但长度要合适。 关键字不能作标识符。
查看完整题目与答案
【单选题】下列关于Windows程序的命名规则叙述错误的是( )。
A.
在名字中少用数字编号
B.
类的成员变量在一般的变量前加上m_
C.
标识符最好采用汉语拼音
D.
指针变量在一般变量前加小写字母p
查看完整题目与答案
【单选题】In the earliest stages of man’s development he had no more need of money than animals have. He was content with very simple forms of shelter from natural materials around him. he made his own rough to...
A.
Shells
B.
Tea
C.
Salt
D.
Horses
查看完整题目与答案
【单选题】In the earliest stages of man’s development he had no more need of money than animals have. He was content with very simple forms of shelter from natural materials around him. he made his own rough to...
A.
paper was invented
B.
nothing could be offered in exchange
C.
people practiced a simple process of exchange
D.
the exchange of one thing for another became too complicated
查看完整题目与答案
相关题目：
【单选题】In the earliest stages of man’s development he had no more need of money than animals have. He was content with very simple forms of shelter from natural materials around him. he made his own rough to...
A.
all learnt to make by themselves the things needed.
B.
had to travel a lot to look for what they wanted
C.
wanted better things than those they themselves could provide
D.
no longer provided food and clothing for themselves
查看完整题目与答案
【简答题】Section A So far there have been discovered no limits to man’s capacity to learn.【76】From earliest times, however, men in positions of power or influence have suggested that the learning capacity of c...
查看完整题目与答案
【多选题】编码中对符号名的命名一般要求:
A.
标识符的命名要清晰、明了,有一定的实际意义,同时使用完整的单词或大家基本可以理解的缩写,避免使人产生误解
B.
命名中若使用特殊约定或缩写,则要有注释说明
C.
自己特有的命名风格,要自始至终保持一致,不可来回变化
D.
对于变量命名,尽量不要取单个字符(如i、j、k等),建议除了要有具体含义外,还要能表明其变量类型、数据类型等,但i、j、k作局部循环变量是允许的
E.
命名规范必须与所使用的系统风格保持一致,并在同一项目中统一
F.
名字不是越长越好
查看完整题目与答案
【单选题】某龙财毕业生拟在龙财设立永久性奖学金,每年拟发放20万元,若收益率为10%,则该毕业生应一次性投入本金的数额为( )
A.
100万元
B.
500万元
C.
1000万元
D.
200万元
查看完整题目与答案
【单选题】In the earliest stages of man’s development he had no more need of money than animals have. He was content with very simple forms of shelter from natural materials around him. he made his own rough to...
A.
man became more civilized
B.
there was not a marketplace for farmers and smiths to exchange their goods
C.
farmers hadn’t enough grain or meat to provide for skilled workers 。
D.
more and more goods which had no fixed exchange values appeared on the market. 。
查看完整题目与答案
【单选题】C#变量标识符命名规则错误的是
A.
变量标识符由字母、数字和下划线“_”组成
B.
不能包含包含空格、标点符号、运算符等其它符号
C.
变量标识符不区分大小写
D.
变量标识符必须由字母或下滑线“_”开头,不能以数字开头
查看完整题目与答案
【单选题】下面关于变量的命名规则错误的是:
A.
以字母、下划线或美元符 “＄”开始的，并包含这些字符和数字的字符序列。
B.
关键字不能作标识符。
C.
变量名可以以数字作为开头。
D.
标识符是大小写相关的，且可以任意长，但长度要合适。 关键字不能作标识符。
查看完整题目与答案
【单选题】下列关于Windows程序的命名规则叙述错误的是( )。
A.
在名字中少用数字编号
B.
类的成员变量在一般的变量前加上m_
C.
标识符最好采用汉语拼音
D.
指针变量在一般变量前加小写字母p
查看完整题目与答案
【单选题】In the earliest stages of man’s development he had no more need of money than animals have. He was content with very simple forms of shelter from natural materials around him. he made his own rough to...
A.
Shells
B.
Tea
C.
Salt
D.
Horses
查看完整题目与答案
【单选题】In the earliest stages of man’s development he had no more need of money than animals have. He was content with very simple forms of shelter from natural materials around him. he made his own rough to...
A.
paper was invented
B.
nothing could be offered in exchange
C.
people practiced a simple process of exchange
D.
the exchange of one thing for another became too complicated
查看完整题目与答案
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