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【单选题】
对于由两容量交流同步发电机构成的船舶电站,下列关于原动机调速特性的说法中,正确的是______。A.
均为无差特性，是最为理想的
B.
一台为有差特性，一台为无差特性，并联后一定可以稳定运行
C.
均为相同的调差率的有差特性，是最为理想的
D.
均为相同的调差率的有差特性，并联后不能稳定运行
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【简答题】1. Maritime
security patrols protect busy trade routes and ________illegal activity . 2. Such
a light appears to interfere with __________of the hormone melatonin, which
helps let the body know it is ...
【单选题】Public __________ refers to the body of creative works that is not protected by intellectual property laws such as copyright, trademark or patent laws. The public owns these works, not an individual a...
A.
agenda
B.
community
C.
domain
D.
security
【单选题】The text is, roughly speaking, organized in three parts – an opening, a body and a conclusion. Put the main ideas in the correct place:Part Two Paras. 4-15 , _______2______(Main Ideas)
A.
A new atmosphere of fear and distrust has crept into every aspect of daily life. As a result, security devices, in varied forms, are put to use.
B.
In America, the ear of leaving the front door on the latch has drawn to a close.
C.
In locking our fears out, we become prisoners of our own making.
【单选题】The text is, roughly speaking, organized in three parts – an opening, a body and a conclusion. Put the main ideas in the correct place:Part Three Paras. 6-19 , _________3______(Main Ideas)
A.
A new atmosphere of fear and distrust has crept into every aspect of daily life. As a result, security devices, in varied forms, are put to use.
B.
In America, the ear of leaving the front door on the latch has drawn to a close.
C.
In locking our fears out, we become prisoners of our own making.
【简答题】secretion veneer suppress deployed triple resonance 1. Maritime security patrols protect busy trade routes and ___...
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