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【简答题】
由于船体形状和外板布置都是左右对称的,所以习惯上外板展开图仅绘制( )
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皮皮学刷刷变学霸
举一反三
【简答题】ADC0809的转换时钟一般为 Hz,可采用单片机的 信号,再经过 的方法获得。
【单选题】资本有机构成提高意味着在不变资本和可变资本的比重中
A.
不变资本的比重增大
B.
不变资本和可变资本按相同的比例扩大
C.
可变资本的比重增大
D.
不变资本和可变资本按相同的比例下降
【单选题】According to Fields, all of the following are the advantages of his technique EXCEPT that ______.
A.
it is environmentally friendly
B.
it is safe to the people's health
C.
it is more effective than pesticides against some insects
D.
it is cheaper than pesticides
【简答题】All of the following are advantages of expert programs EXCEPT that [A] they have an indefinite life span. [B] they cost little to reproduce. [C] many copies can be made available. [D] they are self-an...
【简答题】ADC0809的转换时钟一般为()hz,可以采用单片机的()信号,再经过()的方法获得。
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