进行挑梁设计需要作()、()和()的计算和验算。
参考答案:抗倾覆 梁下砌体局部抗压 挑梁承载力
____the high price, demand for these cars is very high. [ ]
A. Because of
B. In spite of
C. In case of
D. Thanks to
简述“六对”的内容。