轨道加强设备应保持数量齐全,作用良好,缺少时应()补充。
参考答案:有计划地
The lucky fans will be picked out________ rather than chosen beforehand to perform with the
singer during the party. [ ]
A. by accident
B. on earth
C. come across
D. come on
成人血清钠检测值为125mmol/L,估计每公斤体重缺氯化钠的量为
A.0.80~1.00gB.130~1.50gC.1.05~1.25gD.0.25~0.45gE.0.50~0.75g