切割：缝补
A．拼凑：剪裁
B．拖延：推诿
C．装卸：搬运
D．挖掘：填埋
参考答案：D
—_____ the population of the U.S.A. in 2005?
—It _____ about 296 million.
A. What is; is B. What was; was C.How many was; was
支持广域网接口的网桥是（）。
A.本地网桥
B.远程网桥
C.多端口网桥
D.交换式网桥
