更多"频度(frequency)"的相关试题:
[单项选择]某计算机有14条指令,其使用频度分别如表15-3所示。
表15-3 指令集
|
指 令 | 使用频度 | 指 令 | 使用频度 |
11 | 0.15 | 18 | 0.04 |
12 | 0.15 | 19 | 0.03 |
13 | 0.14 | 110 | 0.03 |
14 | 0.13 | 111 | 0.02 |
15 | 0.12 | 112 | 0.02 |
16 | 0.11 | 113 | 0.01 |
17 | 0.04 | 114 | 0.01 |
这14条指令的指令操作码用等长码方式编码,其编码的码长至少为
(22) 位。若只用两种码长的扩展操作码编码,其平均码长至少为
(23) 位。
A. 3
B. 4
C. 5
D. 6
[单项选择]物种频度从高到低分A、B、C、D和E 5级,其中属于E级频度的种类往往是( )。
A. 优势种
B. 伴生种
C. 残遗种
D. 偶见种
[单项选择]弹响指发病频度最多的手指是
A. 拇指、示指
B. 示指、中指
C. 中指、环指
D. 环指、小指
E. 拇指、小指
[单项选择]弹响指各手指发病频度最多的是
A. 拇、示指
B. 示、中指
C. 中、环指
D. 环、小指
E. 拇、小指
[单项选择]弹响指各手指发病的频度最高的是()
A. 拇、示指
B. 示、中指
C. 中、环指
D. 环、小指
E. 拇、小指
[填空题]Traffic accidents occur with alarming frequency, ______ (造成国家财产和生命的巨大损失).
[单项选择]当呼吸幅度减小而呼吸频度加快时,受影响最大的是
A. 每分通气量
B. 无效腔气量
C. 肺泡通气量
D. 功能残气量
E. 肺扩散容量
[填空题]If the power frequency is weaker than the frequency generated by the Earth, it will not have any influence on us.
[简答题]频数匹配(frequency matching or group matching)
[填空题]Spread-spectrum frequency can transmit the same frequency at the same time for more than one device.
[多项选择]在多种工作模式中会降低员工交流频度的工作方式()。
A. 远程工作
B. 在家工作
C. 交叉工作
D. 临时办公桌
[单项选择]Microwave communication uses high-frequency (71) waves that travel in straightlines throughthe air. Because the waves cannot (72) with the curvature of the earth, they can be (73) only over short distance. Thus, microwave is a good (74) for sendingdata between buildings ina city or on a large college campus. For longer distances, the wavesmust be relayed by means of"dishes" or (75) . These can be installed on towers, highbuildings, and mountain tops.
A. material
B. equipment
C. medium
D. channel