电泳分析的血标本,冰箱冷藏保存标本可稳定的时间是()
A.1周
B.2周
C.3周
D.4周
E.5周
参考答案:A
No adults would like to admit that they are weaker than children to solve sticky and puzzling problems.
A.to solve about
B.solve
C.in solving about
D.in solving
根据公共汽车类型按车长分为特大型、大型、中型和小型四种,其中车长9≥L>6米的公交车辆属于()。
A、特大型
B、大型
C、中型
D、小型