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【多选题】
下列有关取指令操作部件的叙述中，正确的是（）A.
取指令操作的主要由存储器的取数时间决定
B.
取指令操作可以和下条指令地址的计算操作同时进行
C.
单周期数据通路中需用一个指令寄存器存放取出的指令
D.
单周期数据通路中PC寄存器写使能信号一直有效
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【单选题】下列关于脂酸连续性β-氧化作用的叙述哪个是错误的?()
A.
脂酸仅需一次活化，消耗ATP分子的两个高能键
B.
除硫激酶外，其余所有的酶都属于线粒体酶
C.
β-氧化包括脱氢、水化、脱氢和硫解等重复步骤
D.
该过程涉及NADP+的还原
E.
氧化中除去的碳原子可进一步利用
【单选题】On Mar. 14, when Wal-Mart Stores Inc. announced its first foray into Japan, the Bentonville (Ark.) retailing giant placed a big bet that it could succeed where countless other foreign companies have f...
A.
revolutionize Japanese retailing.
B.
tap most potential consumer markets in Japan.
C.
combine and become bigger.
D.
withdraw from consumer markets in Japan.
【单选题】变压器铁芯中的主磁通Φ按正弦规律变化，绕组中的感应电势（）。
A.
正弦变化、相位一致
B.
正弦变化、相位相反
C.
正弦变化、相位与规定的正方向有关
D.
正弦变化、相位与规定的正方向无关
【单选题】On Mar. 14, when Wal-Mart Stores Inc. announced its first foray into Japan, the Bentonville (Ark.) retailing giant placed a big bet that it could succeed where countless other foreign companies have f...
A.
revolutionize Japanese retailing.
B.
tap consumer markets in Japan.
C.
combine and become bigger.
D.
withdraw from markets in Japan.
【单选题】On Mar. 14, when Wal-Mart Stores Inc. announced its first foray into Japan, the Bentonville (Ark.) retailing giant placed a big bet that it could succeed where countless other foreign companies have f...
A.
revolutionize Japanese retailing.
B.
tap consumer markets in Japan.
C.
combine and become bigger.
D.
withdraw from markets in Japan.
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