2÷(25-13),
=2÷115,
=30(千克);
答:这桶油30千克.
227. It is necessary that the question _______ at once.
A.should settle
B.be settled
C.might be settled
D.would be settled
头颅CT示左颞叶内有一轮廓模糊的片状占位性病变,呈低密度,不均匀,周围可见脑水肿,中线结构右移,增强扫描呈不规则强化。最可能的诊断为()。
A.脑膜瘤
B.脑脓肿
C.脑内星形细胞瘤
D.脑炎
E.脑梗死