QT600—3中的3表示伸长率大于()%。
A.0.03
B.0.3
C.3
D.30
参考答案:C
The disagreement between the two countries resulted in a war __________.
A.on time
B.in time
C.at times
D.at all times
氧化铁皮的熔化温度为1300~1350℃。