图样上的尺寸，由（）；（）线、尺寸数字和尺寸起止符号组成。
参考答案：尺寸线、尺寸界
He suggested that we ____ the plan later, which suggested that he ____ against it.
A．discussed; was
B．would discuss; should
C．discuss; was
D．should discuss; should be
已知某井套管外径为139.7mm，壁厚7.72mm，井内使用油管外径为73mm，壁厚5.5mm，泵挂深度975m，如采用循环法半压井，则压井液至少应准备多少方？顶替液至少应准备多少方？（保留小数点后2位）
