据分析手段不同，可分为（）分析和（）分析。
参考答案：化学；仪器
______ to the climate here, the old couple prefer to live here for the rest of their life rather than move to another city. [ ]
A. Having accustomed
B. Accustoming
C. Accustom
D. Accustomed
勒纳指数的变动范围是( )。
A．0—1
B．0—10
C．0—100
D．1—100
