在2012年怀化市中学生篮球比赛中，张宇同学在最后一节三分线外投篮，空心入网，弹网后篮球竖直下落，为该队赢得了比赛。若空气阻力大小恒定，则下列说法能正确反映球从出手到落地这一过程的是

A．篮球上升过程加速度小于g，下降过程加速度大于g

B．篮球匀加速上升，变减速下降

C．篮球在上升过程中动能减少，下降时机械能增加

D．篮球在出手时的机械能一定大于落地时的机械能

A new law gives ownership of patents—documents providing exclusive right to make and sell an invention—to universities, not the government, when those patents result from government-sponsored university research. Administrators at Logos University plan to sell any patents they acquire to corporations in order to fund programs to improve undergraduate teaching.
Which of the following, if true, would cast most doubt on the viability of the college administrators’ plan described above

A．Profit-making corporations interested in developing products based on patents held by universities are likely to try to serve as exclusive sponsors of ongoing university research projects.

B．Corporate sponsors of research in university facilities are entitled to tax credits under new federal tax-code guidelines.

C．Research scientists at Logos University have few or no teaching responsibilities and participate little if at all in the undergraduate programs in their field.

D．Government-sponsored research conducted at Logos University for the most part duplicates research already completed by several profit-making corporations.

E．(E) Logos University is unlikely to attract corporate sponsorship of its scientific research.