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【单选题】
补码比较法（Booth算法）是进行乘法运算的常用方法之一，器乘法运算规则不受乘数符号的约束，控制线路比较简明，在计算机中普遍采用。其所需的硬件配置如下：【图片】其中X存放被乘数的补码，Q存放乘数的补码，移位和加控制逻辑受Q寄存器末两位乘数控制。计数器C用于控制逐位相乘的次数，GM为乘法标记。欲计算两个n位数的乘法运算时，加法器应为____位的加法器A.
n+2
B.
n-1
C.
n
D.
n+1
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【单选题】为测定防蚁制品中砷的含量,称取试样 3.00g ,溶解后用肼将 As ( V )还原为 As(III )。在弱碱介质中由电解产生的 I 2 来滴定 As ( III ),电流强度为 50.00mA ,经过 15min6s 达到终点,计算试样中 As 2 O 3 的质量分数。 (As 2 O 3 的相对分子质量为 197.8)
A.
0.77
B.
0.33
C.
7.77
D.
3.33
【简答题】A．They organized online conferences. B．They organized staff meetings. C．They trained the staff members. D．They invested in new technology.
【单选题】血清总胆红素(TB)的正常参考值为
A.
0.17～1.7μmol/L
B.
1.51～15.1μmol/L
C.
1.7～17.1μmol/L
D.
17～34μmol/L
E.
17～170μmol/L
【简答题】( )10、轿顶防护栏的作用是: 。 A、装饰作用; B、平衡轿厢、对重重量; C、保护维修人员安全; D、悬挂标志牌;
【判断题】Describedas either the North American front of the EuropeanSeven Years Waror a purely North American conflict called theFrench and Indian War, it’s the most important military episode in Canadian hist...
A.
正确
B.
错误
【单选题】According to the passage, most American Indian children loved all the following EXCEPT _______.
A.
fishing
B.
hunting
C.
swimming
D.
singing
【简答题】Dear NMAI(National Museum of the American Indian) Supporter， Old stereotypes(思维定式) die hard. And when it comes to the way Native Americans have been viewed throughout history and continue to be viewed...
【单选题】根据以下材料，回答题 Native American Pottery There are several American Indian groups in the Southwest that still make beautiful pottery. Some of this pottery may be sold at fairly high prices. But the makers c...
A.
advertising products on TV
B.
selling and business
C.
large-scale
D.
artistic
【简答题】Being organized is an important skill for school and life. What does it mean to be organized? For schoolwork, it means having one notebook and writing down all the work you need to do, so you know wha...
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