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举一反三
【单选题】下列进制的概念有误的是()
A.
进制也就是进位制，是人们更规定的一种进位方法
B.
十进制就是逢十进一，十六进制就是逢十六进一，二进制就是逢二进一，以此类推，x进制就是逢x进一
C.
对于任何一种进制——x进制，就表示某一位置上的数运算时时逢x进一
D.
二进制数有两个特点;它由两个基本数字1,2组成，逢二进一
【单选题】最佳修复方案是
A.
直接改为活动义齿修复
B.
采用种植固定义齿修复
C.
全冠修复基牙后再改为活动义齿修复
D.
增加前端基牙数再行固定修复
E.
增加前端基牙数目再行固定活动联合修复
【单选题】Long after the 1998 World Cup was won, disappointed fans were still cursing the disputed refereeing (裁判) decisions that denied victory to their team. A researcher was appointed to study the performanc...
A.
The ideal retirement age for an experienced football referee is 35.
B.
Age should not be the chief consideration in choosing a football referee.
C.
A football referee should be as young and energetic as possible.
D.
An experienced football referee can do well even when in poor physical condition.
【单选题】Long after the 1998 World Cup was won, disappointed fans were still cursing the disputed refereeing(裁判) decisions that denied victory to their team. A researcher was appointed to study the performance...
A.
slightly above average
B.
higher than in the 1998 World Cup
C.
quite unexpected
D.
as high as in a standard match