书写中枢位于
A．额上回后部 B．颞上问后部 C．额下回后部 D．额中回后部 E．颞下回后部
参考答案：D
Mike went boating with his friends last weekend. They ______ a good time.
A．have
B．had
C．will have
D．are having
1850 TSS5C能够支持的业务类型有（）
A、CES
B、TMPLS
C、SDH
D、Ethernet
