外墙平均传热系数（Km）
参考答案：
考虑了墙上存在的热桥影响后得到的外墙传热系数，单位为W/m2·K。
—I did very well in the English exam last week. —I did _________. I got a full mark.
A．no better
B．not better
C．no worse
D．even worse
