在石油中多少都含有一定量的()这就对船舶结构材料构成了危害。A、硫份 B、水份 C、

题型:单项选择题

问题:

在石油中多少都含有一定量的()这就对船舶结构材料构成了危害。

A、硫份

B、水份

C、A和B都是

考点:油轮船员考试油轮船员考试题库
题型:单项选择题
选词填空并注意其适当形式。(10分)
all the time ,  a piece of , be good at , how about, have a conversation,
have a good time , in the north of, lots of, matter,  against
小题1:They ___________________in the park last week.
小题2:Daming is a good student. He ____________all kinds of things in the life.
小题3:Don’t smoke in the school, It is ________ the rule of the school.
小题4:His sister was angry with him, so she was crying __________in the bedroom.
小题5:Now let’s ________________to talk about the sports  meeting next week.
小题6:The weather gets cooler and cooler, _________ wearing warm clothes?
小题7:The Mid autumn Day is coming , My mother bought ________meat for us.
小题8:_____________ China has many beautiful places.
小题9:She looked very unhappy yesterday. What was the ________ with her?
小题10:He is very thirsty,so he drinks____________milk.
题型:单项选择题

合同的变更是指合同依法成立后,在尚未履行或完全履行时,当事人双方依法经过协商对合同的()进行修订或调整所达成的协议。

A.形式

B.内容

C.主体

D.客体

题型:单项选择题

随着生产的延续,残酸水的量是逐渐减少的。

题型:单项选择题

井下二氧化碳的来源有()

A.爆破工作和瓦斯煤尘爆炸,煤和坑木氧化

B.煤岩(岩)层中渗出、突出或喷出

C.碳酸性岩石与酸性水分解

D.人员呼吸

题型:单项选择题

细菌属于()

A.原核细胞型微生物

B.真核细胞型微生物

C.非细胞型微生物

D.不属于微生物

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