In the absence of external forces , the center of buoyancy of an inclined vessel is vertically aligned directly below the ______. A. center of gravity B. amidships station C. center of flotation D. geometric center of the waterplane area
【简答题】The authoritarian model was one in which the child __________ and I guess in the 60s and perhaps the 70s many people _______ that and we had the sort of the ________ era — the age where many parents f...
【简答题】The following form shows the result of a survey (调查) of parents from five countries, who were asked why children are important to them. They were required to choose three main reasons from seven deali...
【简答题】Elizabeth Freeman was born about 1742 to African American parents who were slaves. At the age of six months she was acquired, along with her sister, by John Ashley, a wealthy Massachusetts slaveholder...