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【多选题】
从较大的金属铸件采样,正确的方法是
A.
在铸件的表面锉一些金属屑,混合而成
B.
在铸件的表面各个部位都锉一些金属屑,混合而成
C.
将铸件锯半,收集锯屑,混合而成
D.
在铸件的不同部位锯断,收集锯屑,混合而成
E.
在铸件的某一部位钻孔,穿过整个铸件,收集钻屑,混合而成
F.
在铸件的不同部位钻孔,穿过整个铸件,收集钻屑,混合而成
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皮皮学刷刷变学霸
举一反三
【判断题】教学过程可以称为教案的“帽子"。( )
A.
正确
B.
错误
【单选题】What does the man ask the woman to do?
A.
He asks the woman to meet him at the railway station.
B.
He asks the woman to meet him at home.
C.
He asks the woman to meet him at the airport.
【单选题】p81 下列关于会计信息质量要求的说法不正确的是( )。
A.
谨慎性的应用允许企业设置秘密准备
B.
谨慎性要求企业不应高估资产或者收益、低估负债或者费用
C.
可比性要求企业提供的会计信息应当相互可比
D.
会计政策前后各期应保持一致,不得随意变更,体现的是可比性
【单选题】下列关于会计信息质量要求的说法不正确的是()。
A.
谨慎性的应用允许企业设置秘密准备
B.
谨慎性要求企业不应高估资产或者收益、低估负债或者费用
C.
可比性要求企业提供的会计信息应当相互可比
D.
会计政策前后各期应保持一致,不得随意变更,体现的是可比性
【单选题】眼球内容物不包括( )
A.
晶状体
B.
睫状体
C.
房水
D.
玻璃体
【简答题】为了解基因结构,通常选取一特定长度的线性DNA分子,先用一种限制酶切割,通过电泳技术将单酶水解片段分离,计算相对大小;然后再用另一种酶对单酶水解片段进行降解,分析片断大小。下表是某小组进行的相关实验。 (1)该实验设计主要体现了__________________原则。 (2)由实验可知,在这段已知序列上,A酶与B酶的识别序列分别为______个和_____个。 (3)根据表中数据,请在下图中标出...
【单选题】Why does Tom ask Sally and John to call him?
A.
He wants to meet them at the station.
B.
He wants to invite them to dinner.
C.
He wants them to visit his family.
【单选题】Nobody believed his reason for being absent form the class  _____ he had to meet his uncle at the air port. [     ]
A.
why
B.
that
C.
where
D.
because
【简答题】Nobody believed his reason for being absent form the class _____he had to meet his uncle at the airport. A.why B.that C.where D.Because
【简答题】A.He wants to meet them at the concert. B.He wants to make up for their loss. C.He wants to rob them on their way to the concert. D.He wants to rob their house.
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