已知函数f(x)是定义在R上的以4为周期的函数,”当x∈(-1,3]时,f(x)= 其中t>0.若函数y=-的零点个数是5,则t的取值范围为
Prince William will be fiercely protective of his new son to make sure he has a chance of a “normal” family life, ________happens in Royal circles.
The young couple, who returned my lost wallet, left _______ I could ask for their names.
—I wonder how much you charge for your services. —The first two are free the third costs $30.
It is hard for the Greek government to get over the present difficulties_________ gets more financial support from the European Union.
------ Our holiday cost a lot of money. ------ Did it? Well, that doesn’t matter ______ you enjoyed yourselves.