单项选择题
A.exoskeleton B.tower crane C.structural steel D.glass wall
Which of the following building used tower crane for th...
单项选择题Which of the following building used tower crane for the first time?（）
A.John Hancock Center B.Chrysler Building C.The Empire State Building D.Marina City
What are the features of a Victorian Brownstone house i...
多项选择题What are the features of a Victorian Brownstone house in Boston?（）
A.It has a stoop. B.The facade is built with brownstone or brown-colored bricks. C.It’s often a 2 or 3-story townhouse. D.The facade is built with brownstone only.
If you husband something valuable, you use it （）。A.Care...
单项选择题If you husband something valuable, you use it （）。
A.Carelessly B.Optionally C.Carefully D.Freely
