计算机网络按照规模大小和延伸范围可分为（）。
A.局域网
B.广域网
C.城域网
D.A、B、C都是
参考答案：D
肠伤寒病变最突出的部位是（）
A.直肠
B.乙状结肠
C.横结肠
D.升结肠
E.回肠末端
The new stadium beingbuilt for the next Asian Games will be _____ thepresent one.
A. as three times big as
B. three times as big as
C. as big as three times
D. as big three times as
