炉温正常,渣铁流动性好时,铁口眼相应可()。
A、小些
B、大些
C、无要求
参考答案:A
The worsening of global warming, _____human activities are to blame, has led to frequently extreme weather.
A.by which
B.for which
C.that
D.what
查体发现圆背畸形,脊柱摄片时发现竹节样改变,骶髂关节融合,应怀疑()
A.脊柱结核
B.强直性脊柱炎
C.椎间盘突出症
D.椎管狭窄症
E.嗜酸性肉芽肿