请帮忙给出正确答案和分析,谢谢!
第1题
A.void and null
B.null and void
C.useless
D.unusable
第2题
A.the national flag
B.the quarantine signal
C.the Certificate of Pratique
D.the navigational light
第3题
【C5】
A.In a word
B.In spite of that
C.In other words
D.In any event
第4题
第5题
A.gastroenteritis
B.complication
C.asthma
D.infection
第6题
The certificate of pratique certifies that ______.
A.the ship has no rats or mice on board
B.no quarantinable disease has been found on the vessel
C.no person has died during the voyage the ship has just completed
D.all the crew members have no health problem
第7题
We would contact your nearest relative______ any accident occurring.
A.in the event of
B.in the course of
C.in the place of
D.in the light of
第8题
A.They didnt get any check.
B.They were heart disease patients.
C.They were unwilling to join the research.
D.They were heavy and young.
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