接地装置的冲击接地电阻Ri跟工频接地电阻R～的大小关系是（）。

A:R～≥Ri B:R～≤Ri C:R～＞Ri D:难以确定

当子帧中CQI/PMI/RI上报与正向SR发生冲突时，哪个会被丢弃（）

A:两者都不丢弃 B:CQI/PMI/RI上报被丢弃 C:正向SR被丢弃 D:两者都被丢弃

第二类防雷建筑物，当金属物或电气线路与防雷的接地装置之间不相连结时，且当Lx<5Ri时，其与引下线之间的距离应由（）式确定。

A:ai=0.4（Ri+0.1Lx） B:ai=0.2Kc（Ri+0.1Lx） C:ai》0.3Kc（Ri+0.1Lx）

三个单级放大器的输入电阻分别是Ri1，Ri2和Ri3，将它们连接成一个多级放大器，其输入电阻应是（）。

A:Ri1+Ri2+Ri3 B:Ri1×Ri2×Ri3 C:Ri1 D:Ri3

还原性能（RI）

Ri质粒

(Looking through the window) at all the cars on the road, (the traffic) (was getting) much (heavier) than it had been an hour ago.

A:Looking through the window B:the traffic C:was getting D:heavier

(Looking through the window) at all the cars on the road, (the traffic) (was getting) much (heavier) than it had been an hour ago.

A:Looking through the window B:the traffic C:was getting D:heavier