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【判断题】
在数量验收中,发现问题要按规定的手续,在规定期限内向有关部门提出索赔要求,
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】People _______ our support and help . We must do something at once.
A.
in need
B.
in need of
C.
in need need
D.
in need of need
【单选题】We need to know something about the structure and operation of science because ______.
A.
it is not easy to understand the things that excite and frustrate the scientist
B.
Science affects almost every aspect of our life
C.
Scientists live in a specific subculture
D.
It is easier to understand general characteristics of science
【单选题】电源电路中滤波的作用是()
A.
将正弦波变方波
B.
将交流电变直流电
C.
将高频信号变成低频信号
D.
使脉动直流电压变为平滑的直流电压
【简答题】滤波的作用是将 直流电变为 直流电。
【单选题】We need to know something about the structure and operation of science because ______.
A.
it is not easy to understand the things that excite and frustrate scientists
B.
Science affects almost every aspect of our life
C.
Scientists live in a specific subculture
D.
It is easier to understand general characteristics of science
【单选题】We need to know something about the structure and operation of science because_________.
A.
it is not easy to understand the things that excite and frustrate scientists
B.
science affects almost every aspect of our life
C.
scientists live in a specific subculture
D.
it is easier to understand general characteristics of science
【单选题】滤波的作用是
A.
滤除交流电
B.
滤除脉动直流电中的交流成份
C.
滤除直流电
D.
把直流电整流成交流电
【单选题】We need to know something about the structure and operation of science because ______.
A.
it is not easy to understand the things that excite and frustrate science
B.
science affects almost every aspect of our life
C.
scientists live in a specific substructure
D.
it is easier to understand general characteristics of science
【单选题】We need to know something about the structure and operation of science because ______.
A.
it is not easy to understand the things that excite and frustrate the scientist
B.
science affects almost every aspect of our life
C.
scientists live in a specific subculture
D.
it is easier to understand general characteristics of science
【单选题】铅中毒问题中,模型所涉及的变量为( ) .
A.
组织、血液、舌头
B.
组织、血液、骨头
C.
组织、血液
D.
血液、骨头
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