患儿,9个月。腹泻时曾服用抗生素1周,现症见满口白屑,状如雪花。应首先考虑的诊断是()
A. 幼儿急疹
B. 乳垢
C. 正常
D. 鹅口疮
E. 麻疹
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当信号机不能正常开放时,()与()共同确认进路正确无误后,方可开放引导信号。
A. 行调,各站行车值班员
B. 行调,联锁站行车值班员
C. 行调,首末站行车值班员
D. 各站行车值班员,联锁站行车值班员
What affect will a shutdown -Fr command have on the resource groups on a cluster node?()
A. They will be placed in an error state.
B. They will be released an not acquired by another node.
C. They will migrate to the next node in the priority list.
D. They will migrate to the next node and be reacquired by the first node on system restart.
对于各种动态相对指标如环比地价指数、环比物价指数等计算平均值时,应采用算术平均法。()
A. 正确
B. 错误
能使混合气燃烧产生的最大气缸压力出现在压缩上止点后10°~15°的点火时刻为最佳点火时刻。
A. 正确
B. 错误