砌墙施工过程中，皮数杆一般立于房屋的什么位置，下列表述中错误的是(， )。
A．四大角
B．内外墙高接处
C．伸缩缝两侧
D．洞口多的地方
参考答案：C
—Ouch! You hurt me.
—I'm sorry. But I ________ any harm. I ________ to drive a rat out.
A．don't mean; am trying
B．didn't mean; tried
C．haven't meant; tried
D．didn't mean; was trying
下图反映的是我国近现代史的哪一种经济形态的发展状况?
A．自然经济
B．洋务经济
C．民族资本主义经济
D．官僚资本主义经济
