目前的LTE终端等级（Category）一般为3，下列调制方式哪些是这种终端支持的？（）

A.上行16QAM

B.上行64QAM

C.下行16QAM

D.下行64QAM

一 Do you mean we are almost running out of food?

一 Yeah.        the canned and frozen foods are used up

A．as soon as

B．as far as

C．as much as

D．as well as