MnSiO3还原得到20%Si的锰铁合金开始还原温度为()
A、1240℃
B、1490℃
C、1700℃
D、1644℃
参考答案:B
Britain is _____ France by the English Channel, and the whole Britain is _____ three parts. [ ]
A. divided into; separated from
B. separated from; divided into
C. divided into; divided into
D. separated from; separated from
4个月婴儿,发热、咳嗽2天,嗜睡、反复惊厥半天。查体:精神差,前囟膨隆,两肺可闻及中小水泡音,颈无抵抗,双巴宾斯基(Babinski)征阳性。
不可能的诊断为()
A.化脓性脑膜炎
B.中毒性脑病
C.病毒性脑炎
D.高热惊厥
E.结核性脑膜炎