碗扣式钢管脚手架中的重型架一般取较小的立杆纵距（0.90m或1.2Om），用于重载作业或作为高层外脚手架的底部架。（）
参考答案：对
旁中心暗点
--Drivers in England drive cars on the left of the roads.
-- .
A．So Australian drivers are.
B．So are Australian drivers.
C．So do Australian drivers.
D．So Australian drivers do.
