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【单选题】
以下可以被GMDSS船舶选用的设备是( ) 。 1Inmarsat船站,包括C/F船站、EGC接收设备;2COSPAS - SARSAT系统的EPIRB,或称 406MHZ EPIRB;3MF/HF无线电通信设备,包括单边带无线电话设备、NBDP终端和DSC终 端;4VHF无线电设备,包括调频无线电话设备、DSC终端;59GHz搜救雷达应答器(SART); 6便携式VHF双向无线电话设备;7工作于518 kHz的NAVTEX接收机。A.
①②③④⑤⑥⑦
B.
②③④⑤⑥⑦
C.
①②③④⑤⑥
D.
①②③④⑥⑦
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【单选题】I wished it __( )_ but it did.
A.
occurred not
B.
did not occur
C.
had not occurred
D.
would not occur
【单选题】I wished it ______ but it did.
A.
had not occurred
B.
occurred not
C.
did not occur
D.
would not occur
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【单选题】I wished it but it did.
A.
occured not
B.
did not accur
C.
had not occurred
D.
would not occur
【简答题】纯物质P-V图临界等温线在临界点处的斜率（），曲率为（）。
【简答题】情景反应。本题共有7个小题，每小题有A、B、C三个选项。请根据你所听到的内容，选出一个最佳答 语。(每小题念两遍) ( )1. A. How do you do? ( )2. A. It's June 17. ( )3. A. You're welcome. ( )4. A. She's thin with long hair. ( )5. A. Is th...
【简答题】根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。 A: Hi, Kate. Long time no see! B: Hi, Jane. You have changed a lot. 小题1: . Bu now you are thin. A: So have you. You used to have long hair. 小题2:________________...
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