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【多选题】
下列关于奇偶效验的描述中,正确的是()A.
奇校验和偶校验的码距1
B.
编码时使用的校验位与被效验数据的长度无关
C.
校验时得到的无措结论不可信
D.
校验时得到的有错结论不可信
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反馈参考答案：
举一反三
【单选题】下列说法不符合原文意思的一项是( ) 。
A.
海浪中的气泡能发出纯美、浑厚的声音,这是海洋学研究所的科学家通过实验和观测发现的。
B.
地球上二氧化碳的数量影响着大气的温度,而二氧化碳的数量在很大程度上是由水中的大小气泡决定的。
C.
科学家将气泡分成一大一小两个种类,大小气泡形成的过程不尽相同,但都遵循了能量守恒的规律。
D.
浪尖卷起的空气被海浪分割成大气泡,海水表面的空气同时被浪花带入水中形成小于1毫米的小气泡。
【简答题】ad. 特别,尤其 p__________
【单选题】关于声现象，下列说法中正确的是 [ ]
A.
“闻其声而知其人”主要是根据声音的响度来判断的
B.
敲锣时用力越大，声音的音调越高
C.
我们能区分不同同学说话的声音，是因为他们的音色不同
D.
声音的大小由振动的频率决定
【单选题】Which of the following is likely an accurate projection for the workforce in the twenty-first century?
A.
The workforce will have to be more mobile than ever before because of the global
B.
rketplace.
C.
Continuing development of a global marketplace will require development of an
D.
ternational workforce.
E.
The technology required by the global marketplace will reduce the need for a
F.
lticultural workforce.
G.
As nations become self-sufficient, international business will decrease, eliminating the
【单选题】I'm not sure that these figures are accurate.
A.
http://leicloud.ulearning.cn/course/mediacontent/20130911/lesson-04/audio/toeic_ch03_02_02_01a.mp3
B.
http://leicloud.ulearning.cn/course/mediacontent/20130911/lesson-04/audio/toeic_ch03_02_02_01b.mp3
C.
http://leicloud.ulearning.cn/course/mediacontent/20130911/lesson-04/audio/toeic_ch03_02_02_01c.mp3
【单选题】Which of the following is likely an accurate projection for the workforce in the twenty-first century?
A.
The workforce will have to be more mobile than ever before because of the global marketplace.
B.
Continuing development of a global marketplace will require development of an international workforce.
C.
The technology required by the global marketplace will reduce the need for a multicultural workforce.
D.
As nations become self-sufficient, international business will decrease, eliminating the need for a multinational workforce.
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