焊缝质量检查是焊缝无裂纹,无夹渣,无气孔,无焊瘤及大于()mm的咬口等。A、0.2

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问题:

焊缝质量检查是焊缝无裂纹,无夹渣,无气孔,无焊瘤及大于()mm的咬口等。

A、0.2

B、0.5

C、0.8

D、1.0

考点:集输工考试集输中级工考试集输中级工考试题库
题型:单项选择题

类胡萝卜素在体内可转变成哪种维生素()。

A.维生素D

B.维生素A

C.维生素E

D.维生素K

E.维生素B2

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下列可使血糖浓度下降的激素是()

A.肾上腺激素

B.胰升糖素

C.生长素

D.胰岛素

E.甲状腺素

题型:单项选择题

Read the passage carefully and then translate the underlined sentences into English or Chinese. Write your answer on your answer sheet.

Howard Carter is one of the most famous explorers the world has ever known. He was brave and loved to visit and explore new places. During his life, he discovered many amazing things.小题1:他天资聪颖,对家乡之外的世界充满了好奇心when he was very young.

Howard Carter never went to school, but learnt to draw from his father. 小题2:By the 1920s, he had become an explorer, searching for the tombs of the Egyptian kings. He discovered a great fortune in jewels and gold, along with the preserved bodies of dead kings. 小题3:这些经过处理的遗体就是为人所知的木乃伊. In 1922, Howard Carter made his most amazing discovery of all, in the Valley of the Kings, in Egypt, where he found the tomb of King Tutankhamun.

However, not long after the tomb had been opened, people in Carter’s team began to fall ill and die strangely.小题4:Within seven years, 21 people who had something to do with the opening of the tomb died.

Some people say the deaths were just coincidence. 小题5:Others believe that they were in connection with a mummy’s curse. However, still others believe that there is a scientific explanation, because inside the tombs there are many viruses.

题型:单项选择题

迪拜的功能定位已远远超过了原来的单一港口,因为它不仅是物资运往国内市场的中转中心,而且作为周边地区的(),也发挥了重要的作用。

题型:单项选择题

微孔滤膜用于滤除细菌时应采用的是

A.孔径为5.0μm

B.孔径为1.0μm

C.孔径为0.6或0.5μm

D.孔径为0.65~0.8μm

E.孔径为0.45或0.22μm

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