变压器的铜损是由（）的大小决定的。
参考答案：负载电流
判断糖尿病控制程度较好的指标是（）
A.空腹血糖
B.餐后尿糖
C.GHB
D.IRI
E.OGTT
Judging from what has happened here, it’s high time that we _______effective measures to prevent this.
A．could take
B．must take
C．should take
D．would take
