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举一反三
【多选题】下列关于黄河的叙述，正确的是（ ）
A.
黄河流经的主要地形区有青藏高原、内蒙古高原、华北平原
B.
黄河是我国的第二大河
C.
黄河中游流经黄土高原，带来大量泥沙，使下游成为“地上河”
D.
可以通过在黄河下游开挖新入海河道来治理黄河
【单选题】下列有关黄河的叙述正确的是（ ）
A.
黄河发源于唐古拉山脉
B.
黄河下游支流众多
C.
黄河是我国第二长河，全长5464千米
D.
黄河下游经常决口改道，原因是大量泥沙随雨水进入下游
【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