下列血清标志物，急性乙型肝炎窗口期可检出的是（）。
A.HBsAg
B.抗-HBs
C.HBeAg
D.抗-HBc
E.HBcAg
参考答案：D
—Do you know _____?
—Next Sunday. [ ]
A. what they will do
B. what will they do
C. when will they come
D. when they will come
糖浆面坯是面粉与绵白糖调制而成。（）
