血清中常规检查检测不到的HBV标记物是（）。
A.HBsAg
B.HBeAg
C.HBcAg
D.抗-HBe
E.抗-HBc
参考答案：C
小儿结核性脑膜炎早期主要症状为（）
A.前囟膨隆
B.意识不清
C.咳嗽、咳痰
D.性情改变
E.惊厥
—Where’s that report?
—I brought it to you _______ you were in Mr.Black’s office yesterday.
A．if
B．when
C．because
D．before
