棒材精轧机轴向调整量为()mm。
参考答案:±3
已知1.505×1023个X气体分子的质量为8g,则X气体的相对分子质量是( )
A.16
B.32
C.64g /mol
D.32g /mol
Some people don’t like living in noisy cities, so they move _________.
A.interesting somewhere
B.somewhere quiet
C.warm anywhere
D.anywhere beautiful