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【单选题】
献血员HIV最佳筛查指标（）
A.
抗-HIV
B.
P24抗原
C.
CD4+T细胞
D.
CD8+T细胞
E.
抗-HIV+P24抗原
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【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
【多选题】下面对赢得值法评价指标叙述正确的是( )。
A.
费用偏差=已完工作预算费用-已完工作实际费用
B.
当费用偏差为正值时，表示运行超出预算费用
C.
当进度偏差为负值时，表示进度延误
D.
当费用绩效指数＜1时，表示节支
E.
当进度绩效指数＞1时，表示进度提前