carrier载波

DCD：Data Carder Detect，载波侦测指示，有时简称CD(Cartier Detect)。当调制解调器收到对方调制解调器送来的信号(载波Carrier)时，此灯会亮，代表已能和对方调制解调器传送【 】。

A clause in a bill of lading stating that the carrier would not be liable for any damage unless the shipper proved negligence or lack of due diligence on the carrier's part was held to be void because ________

A.it shifted the burden of proof from the carrier to the shipper

B.it shifted the burden of proof from the shipper to the carrier

C.it denied the burden of proof

D.it did not specify the burden of proof

IEEE802.3以太网采用_____协议以支持总线性结构，它的全称是()。

A.STP，Spanning Tree Protocol

B.STP，Shortest Tree Protocol

C.CSMA/CD Carrier Sense Multicast Access/Collision Detection

D.CSMA/CD Carrier Sent Multicast Access/CRC Detection

E.CSMA/CD Carrier Service Multiple Access/Collision Detection

F.CSMA/CD Carrier Sense Multiple Access/Collision Detection

If a container which has not been filled，packed，stuffed or loaded by the Carrier is delivered by the Carrier with the seal ______，such delivery shall be deemed as full and complete performance of the Carrier's obligation．

A.Intact

B.Properly used

C.Perfect

D.Fully sized

If the carrier and the shipper have agreed that the goods shall or may be carried on deck，the carrier must ______ in the bill of lading a statement to that effect．

A.desert

B.dessert

C.insert

D.reseat

A.（C：Carrier，载波功率。I：Idle）

B.GSM规范中一般要求C/I>=9DB

C.C/I>=12（不开跳频），C/I>=9（开跳频）

D.用于反映无用的无线信号受有用的无线信号干扰的情况

Goods of an inflammable， explosive or dangerous nature to the shipment whereof the carrier， master or agent of the carrier， has not consented， with knowledge of their nature and character， may at any time before discharge， ________ at any place or destroyed or rendered innocuous by the carrier without compensation．

A.be handed

B.be landed

C.be mended

D.be tended

下行同步信道包括P-SCH 和S-SCH，P-SCH和S-SCH的频域位置为DC carrier附近的72个子载波。实际上只占了62个子载波，其他10个不承载同步序列。()

Where both the carrier and the actual carrier are liable for compensation，they shall ______ be liable within the scope of such liability．

A.separately

B.jointly

C.severally

D.jointly and severally