原油一次注水量规定为()
参考答案:4-6%
The girl sat there quite silent and still with her eyes ____ on the wall.
A.fixing
B.fixed
C.to be fixing
D.to be fixed
患者,男,50岁。某煤矿工人,双下肢均见青筋垒垒,盘曲成团,色青紫,自觉下肢沉重而胀,抬高稍缓,应诊断为()
A.气瘤
B.肉瘤
C.筋瘤
D.血瘤
E.骨瘤