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【单选题】
GMDSS is required for which of the followings?A.
All vessels capable of international voyages
B.
SOLAS Convention ships of 300 gross tonnage or more
C.
Vessels operating outside of the range of VHF costal radio stations
D.
Coastal vessels of less than 300 gross tons
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【简答题】油脂氧化主要的初级产物是ROOH。ROOH不稳定,易分解。首先是O-O断裂,生成______和羟基自由基,然后是断裂______。
【单选题】In fact,ancient people celebrated the New Year even before they had ways of ( )time.
A.
measures
B.
measured
C.
measuring
D.
measure
【简答题】请选出有错误的部分。 I think the art festival should be held as animated . A B C 2. I think the arts festival should be ...... which can demonstrate university students’...
【简答题】What job opening does the company have? 2. What kind of company is it, according to Alice? 3. What kind of experience should the applicant have? 4. Which university did Frank graduate from? 5. What is...
【简答题】This is a BBC report on the first poll of UK experts on the top US presidents. In 1960, US political scientist Richard Neustadt began his seminal book Presidential Power with the observation: “In the ...
【单选题】Which of the following statements is true?
A.
The Spanish arrived in Mexico long before the Maya civilization.
B.
Now, many of the ancient Mayan cities and temples can be visited by visitors.
C.
The Mayan priests developed a system for measuring accurately.
D.
In the 1500s the Maya left their villages and beautiful cities.
【简答题】快速移动电动机 M3是 工作,故未设 保护。
【单选题】The figure shows the principle circuit diagram of measuring the DC resistance of the coil. The known internal resistance of the voltmeter is 2kΩ. If after the measurement is completed , the switch K i...
A.
400V
B.
200V
C.
10V
D.
2V
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