某海船搁浅后告知海事局,船东和海事局未通知船检机构验船,船检机构可否登船检验,为什么

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问题:

某海船搁浅后告知海事局,船东和海事局未通知船检机构验船,船检机构可否登船检验,为什么?

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右侧标志警告前方路段要注意儿童。

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梅毒性心脏病致主动脉瓣关闭不全有()

A.心尖区隆隆性杂音 

B.主动脉瓣区舒张期吹风样杂音 

C.两者均有 

D.两者均无

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厨房生产量不确定的原因是什么?

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Passage 2

According to a WHO report, what is the reason for the increases of chronic diseases a. Because the economic gains in many countries have increased. b. Because the environmental pollution is getting more serious. c. Because the people do not have enough money to cure these diseases. d. Because there are not sufficient funds for the treatment of chronic diseases.

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培养亚硝酸细菌时,要以()为唯一能源,接种少量不含有机质淤泥,加富培养。

A、N2

B、亚硝酸盐

C、硝酸盐

D、铵盐

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