第1题:
下列指令中,有语法错误的是( )。
A.MOV[SI],[DI]
B.IN AL,DX
C.JMP WORD PTR[BX+8]
D.FUSH WORD PTR20[BX+SI-2]
第2题:
A.AT接口
B.PS/2
C.USB接口
D.串口
第3题:
A.AT接口
B.PS/2
C.USB接口
D.串口
第4题:
A Doppler speed log indicates speed through the water ______.
A.at all times
B.in the bottom return mode
C.in the volume reverberation mode
D.only when there is no current
第5题:
In a charter-party,the amount of despatch money payable is often fixed ______.
A.at one fourth the demurrage rate
B.at one third the demurrage rate
C.at half the demurrage rate
D.at the demurrage rate
第6题:
A vessel is wind rode when it is ______.
A.at anchor and heading into the wind
B.backing into the wind
C.carrying lee rudder
D.necessary to apply a leeway correction to the course
第7题:
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第13题:
下列指令中,有语法错误的是( )。
A.MOV [SI],[DI]
B.IN AL,DX
C.JMP WORD PTR [BX+8]
D.PUSH WORD PTR 20 [BX+SI-2]
第14题:
A.AT接口
B.PS/2
C.USB接口
D.串口
第15题:
We can read such a passage ______.
A.in a newspaper B.in a storybook C.in a picture book D.in a textbook
第16题:
The broadcast will normally be made on the two listed frequencies simultaneously except during transmitter maintenance periods when the broadcast will be made on the two frequencies ______.
A.at the same time
B.exclusively
C.within the same period
D.consecutively
第17题:
A vessel is considered to be "restricted in her ability to maneuver" under the Rules if she is ______.
A.at anchor
B.mineclearing
C.engaged in fishing
D.engaged in towing
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