按制造标准，用量具现场抽样检测绝缘层厚度和圆形线芯的直径。线芯的直径误差不大于标称直径的0.1%。( )
参考答案：错
一个底面半径为4cm，高为10cm的圆柱形烧杯中装满水．把烧杯中的水倒入底面半径为1cm的圆柱形试管中，刚好倒满试管．试管的高为多少cm？
--It’s reported that scientists have ________ an effective way to deal with H1N1.
--Really? That’s great!
A．caught up with
B．come up with
C．agreed with
D．compared with
