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【单选题】
如图3.1所示，如果为曼彻斯特编码，则表示的数据可能为(283)，下面的各种网络中，适用这种编码的是(284)。为了在广域网上高速传输数字信号，可用(285)的编码方式，其编码效率为(286)。设某编码体制的编码方法为：输入数据(m=1，2，…)，发送时，首先计算bm=(aM+bm-1)MOD 2，发送的编码为Cm=bm-bm-1。收到的编码为Cm，其译码方法可表示为(287)。A.
10100
B.
1110
C.
10101
D.
11
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【单选题】For about three centuries we have been doing science, trying science out, using science for the construction of what we call modem civilization. Every dispensable item of contemporary technology, from...
A.
Scientific experiments in the past three hundred years have produced many valuable items.
B.
For three hundred years there have been people holding hostile attitude toward science.
C.
Modern civilization depends on science so man supports scientific progress unanimously.
D.
Three hundred years is not long enough to settle back critical appraisal of scientific method.
【简答题】业务19:通过银行转账,向红日希望小学捐赠20000元。应借记:__科目,金额__元;贷记__科目,金额__元;填制的专用记账凭证的种类为__。
【单选题】For about three centuries we have been doing science, trying science out, using science for the construction of what we call modern civilization. Every dispensable item of contemporary technology, fro...
A.
Scientific experiments in the past three hundred years have produced many valuable items.
B.
For three hundred years there have been people holding hostile attitude toward science.
C.
For centuries scientific discoveries have been hailed by the human world unanimously.
D.
Three hundred years is not long enough to settle back for critical appraisal of the scientific method.
【单选题】下列关于急性化脓性腹膜炎的叙述，错误的是
A.
壁腹膜受刺激时，痛觉敏感，定位准确，可引起放射性肌紧张
B.
脏腹膜受刺激时，痛觉定位差常表现为腹部钝性疼痛
C.
腹膜炎主要病因有阑尾穿孔，胃十二指肠溃疡穿孔
D.
化脓性腹膜炎一般都有混合感染，故毒性较剧
E.
大量毒素吸收是腹膜炎造成血容量明显减少的唯一因素
【简答题】A．升麻 B．柴胡 C．葛根 D．蔓荆子 E．桑叶 治疗风湿痹痛，肢体挛急宜选
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