干熄炉冷却室选用的砖为()。
A.AM
B.BM
C.AT
B.BT
参考答案:B
(2013·安徽名校联考Ⅱ)________ nearly all behavior is learned behavior is a basic assumption ________ has been put forward by social scientists.
A.What; that
B.That; what
C.What; what
D.That; that
物理上行共享信道的调制方式是()
A.QPSK,
B.16QAM,
C.64QAM,
D.GPSK