可增加血中HDL，减轻冠脉病变
A．巨幼红细胞性贫血B．梗阻性黄疸所致出血C．缺铁性贫血D．血小板亢进症E．肿瘤放、化疗后引起的贫血
参考答案：C
The foreigner was talking to the children in the park ______ he was familiar with them.[ ]
A. even though
B. in case
C. so that
D. as if
工程中确定全面通风换气量的最常用方法是( )。
A．按照有害物散发量及进风有害物浓度进行计算
B．按建筑面积估算
C．按换气次数法计算
D．按有害物毒性估算
