利用光纤(或MMDS)、()将电视信号输送到拥护的系统,称为有线电视系统。
参考答案:同轴电缆
An American scientist and writer _______ coming to give us a lecture on English
learning methods when he visits our school.
A.was
B.were
C.is
D.are
李某,患肺炎。入院时体温40℃。为观察体温的变化,常规测量体温的时间为
A.q8h
B.q6h
C.q4h
D.qd
E.qh