轧机节奏是指()
A.开始轧制第一根钢到开始轧制第二根钢的延续时间
B.一支钢从开始轧制到轧制完成所需要时间
C.单位时间内轧制钢的支数
参考答案:A
It is the film ___ director is Steven Spielberg ___ attracts quite a few viewers throughout the
world. [ ]
A. that; who
B. which; that
C. whose; that
D. whose; who
流行性脑脊髓膜炎的最可靠诊断依据是()
A.明显的脑膜刺激征阳性
B.脑脊液呈典型的化脓性改变
C.皮肤上有出血点
D.脑脊液和血培养阳性
E.以上都不是