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【单选题】
半导体只读存储器(ROM、与半导体随机存取存储器(RAM、的主要区别在于A.
在掉电后，ROM中存储的信息不会丢失，RAM信息会丢失
B.
掉电后，ROM信息会丢失，RAM则不会 C、ROM是内存储器，RAM是外存储器
C.
RAM是内存储器，ROM是外存储器
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举一反三
【单选题】Under the immediate write-off method of disposing of underapplied or overapplied overhead costs, current net income is ________ by underapplied overhead costs and current net income is ________ by ove...
A.
increased, decreased
B.
decreased, increased
C.
not affected, not affected
D.
none of the above
【简答题】Logistical operations can be divided into three areas：market distribution，manufacturing support， and（ ）．
【单选题】In the immediate write-off approach to overhead variances, overapplied overhead is regarded as a(n) ________.
A.
addition to the cost of inventory
B.
reduction to the cost of inventory
C.
increase in cost of goods sold
D.
Decrease in cost of goods sold
【多选题】下列各项叙述，正确的有（ ）。
A.
喷射井点最多可以降低水位深度达20m
B.
一级轻型井点可降水10m
C.
土的渗透系数大、地下水量大的土层中宜采用管井井点
D.
深井井点最多能降低水位40m
E.
明排水法宜用于粗粒土层或渗水量小的黏土层
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