名词解释：附加应力
由建筑物的荷载或其他外载在地基内所产生的应力称为附加应力。
暂无解析
Modern____perhapscausesmoreproblemsthanitsolves.
Josephwasverylucky____withhislife;healmostdidnotgetoutoftheroom.
_____himtomorrow.
Duetothebadweathertheplanewas____fortwohours.
Alltheir__havebeenshownupbytheirowndeeds.
