在疫苗双盲法试验中，必须是A．试验组接受疫苗接种，对照组接受安慰剂B．观察者和受试者

Someone says, "Time is money"，but I think time is       important than money. Why? Because when money is spent, we can get it back. However, when time is       it’ll never      . That is       we must not waste time. It goes without saying that the       is usually limited(有限的). Ever a second(秒）is very important. We should make full use of our time to       useful. But it is a pity that there are a lot of people who do not know the importance of the time. They spent their limited time smoking; drinking and      .They do not know that wasting time means wasting part of their own      . In a word, we should save time. We shouldn't       today’s work for tomorrow. Remember we have no time to      .

小题1:	A．much B．less C．mush less D．much more

小题2:	A．cost B．bought C．gone D．finished

小题3:	A．return B．carry C．take D．bring

小题4:	A．what B．that C．because D．why

小题5:	A．money B．time C．day D．food

小题6:	A．nothing B．something C．anything D．everything

小题7:	A．reading B．writing C．playing D．working

小题8:	A．time B．food C．money D．life

小题9:	A．stop B．leave C．let D．give

小题10:

A．lose B．save C．spend D．take