切口附近金属受剪切力作用发生（）而产生塑性变形，它是在材料剪切过程中发生的。
A、内拉扭曲
B、挤压弯曲
C、挤压翻翘
D、内拉弯曲
参考答案：B
2+3.9÷（△-0.5）=3.3，则△=______．
The artist spent years on his monumental painting, which covered the whole roof of the church, the biggest in the country.
A．archaic
B．sentimental
C．outstanding
D．entire
