家庭式家庭替代献血者检测和筛选以下几种（）
A.二种
B.一种
C.三种
D.四种
参考答案：C
正常运行中汽包水位高现象、原因有哪些？
Despite her illness, she had lost _______ of her enthusiasm for life.
A．not anyone
B．none
C．Nothing
D．not all
