不游离存在于血液中的标志物是
A.HBsAgB.抗-HBsC.HBcAgD.抗-HBcE.抗-HBe
参考答案:C
沙眼的病原体属于()
A.细菌
B.病毒
C.真菌
D.衣原体
E.螺旋体
Each of us has _______ life goals, which will guide us to a bright future. Without life goals, we may
waste our lifetime.[ ]
A. a little
B. few
C. a few