单项选择题
A.按设计图示尺寸以水平投影面积计算
B.天棚面中的灯槽、跌级、锯齿形天棚面积不展开计算
C.扣除独立柱、检查口、管道所占面积
D.扣除单个0．3m2以外的孔洞所占面积
单项选择题 A．She hates to speak in front of many people.B．She feels very embarrassed.C．She thinks it's not a big problem.D．She doesn't feel nervous at all.
单项选择题 反铲挖掘机适用于开挖（）的砂土或黏土。
单项选择题 A．She will be frozen up before the audience.B．She doesn't know where to put her hands.C．She only writes an 80-word outline.D．She can't make the speech reasonable enough.