此时尿糖应是
A．阴性
B．＋
C．＋～＋＋
D．＋＋＋
E．＋＋＋＋
参考答案：C
--- Do you live in Beijing now?
--- ______ . It is 10 years ______ I lived here.
A．Yes; since
B．No; since
C．Yes; beofre
D．no; that
泵的有效功率永远（）轴功率.
