The cover of the first edition of Writing Testbenches featured a pho- tograph of the collapse of the Quebec bridge (the cantilever steel bridge on the left1) in 1907. The ultimate cause of the collapse was a major change in the design specification
1．规则的复数形式 15 构成法：一个名词如果表示一个或一样东西，它取单数形式，如pen，dog，tree，fact，church，kiss.如果表示两个或更多这类东西，则需用名词的复数形式，如pens，dogs，trees，facts，churches，kisses.构成名词复数，大多数是在单数形式后加-s或-es，有下面6种情况： a．在单数形式后直接加-s： girl girls hat hats neck necks tree trees pencil pencils kind kin
This document defines the protocols and procedures that shall be used by devices implementing the Hands-Free Profile. The most common examples of such devices are in-car Hands-Free units used together with cellular phones, or wearable wireless heads
