2T2T OLSM表示（）
A.传输分集，速率高，
B.传输分集，速率不高，
C.空间复用，速率高，
D.空间复用，速率不高.
参考答案：C
She dropped her voice as she started to ______ that she had fallen in love with the poet.
A．impress
B．express
C．suppress
D．confess
