【单选题】In the last two hundred years there have been great changes in the method of production of goods. This is now also true of the building industry; for mechanization has been introduced. System building...
A.
the latter uses ready-made internal features
B.
panels are cast in a level position
C.
the former is used to build walls and floors while the latter to construct bathrooms or bedrooms
【简答题】There have been great changes in the lives of women. During the twentieth century ,there was an unusual shortening of the time of a woman’s life spent in caring for children. A woman marrying at the e...