Which statement is the correct for the active transport of small molecules in cell membranes（）

A . Its accuracy remains the same at all latitudes B . It seeks the true meridian C . It can be used near the Earth's magnetic poles D . If an error exists，it is the same on all heading

A . A rich country gets benefits through trade at the expense of its poor country trading partners B . A poor country gets benefits through trade at the expense of its rich country trading partners C . In trade one side or the other must lose because the benefits must come from somewhere. D . In trade it is possible for every part involved winning at the expense of nobody

A . It is a sailing maneuver which brings the vessel's head through the wind B . It connects the boom to the mast and allows the boom to swing freely C . It is a sailing condition where there is a loss of air flow over the sails D . None of the above

A．Ukraine has nearly 45 million people. B．Ukraine is one of the largest nations in Europe. C．Ukraine is in a struggle with Western Europe. D．Ukraine has tension at home right now.

A．The divorce rate in Britain would reach 50 percent. B．Some 34 percent of women have cohabited. C．Over 50 percent of women cohabit before marriage. D．13 percent of births were outside formal marriage in Britain.

A．The stockholder can sell his stock to anywhere at anytime. B．There were no stock exchange in England in the 1700's. C．The price of stock is not stable. D．The stockbrokers do the transaction without charging for the stockholders.

A．Filial responsibility in Singapore is enforced by law. B．Fathers have legal obligations to look after their children. C．It is an acceptable practice for the old to continue working. D．The Advisory Council was dissatisfied with the problems of the old.

A) Some rich people go to stock market. B) All the people who want to get more money go to stock market. C) Some people who are not rich go to stock market. D) Some people who want to save money go to stock market.