血清中常规检查查不到的HBV标志物是
A.HBsAgB.HBeAgC.HBcAgD.抗-HbeE.抗-HBc
参考答案:C
_____ animals are in danger and there will be _____ space for them if we don't take any actions. [ ]
A. More and more; more and more
B. Less and less; less and less
C. More and more; less and less
D. Less and less; more and more
培训中使用的直接传授式教学是应该淘汰的传统的教学方法。