水牛角的功效是（）
A.凉血，养阴
B.凉血，清肺
C.凉血，通淋
D.凉血，利咽
E.凉血，定惊
参考答案：E
It is difficult to imagine his _____ the decision without any consideration. [ ]
A. accept
B. accepting
C. to accept
D. accepted
转炉炼钢用量最大的造渣材料是（）。
A、石灰
B、白云石
C、氧化铁皮
