在3分钟或少于3分钟的暴露期后开始直到60分钟的观察期内能使完好的动物皮肤出现坏死现

题型:单项选择题

问题:

在3分钟或少于3分钟的暴露期后开始直到60分钟的观察期内能使完好的动物皮肤出现坏死现象的腐蚀性物质,应使用()。

A.Ⅰ类包装

B.Ⅱ类包装

C.Ⅲ类包装

D.A和C

考点:海船船员考试货运(大副)货运(大副)题库
题型:单项选择题
完形填空。阅读下面短文,选择最佳作案。(每小题1分,共10分)
The Great Wall of China has a history of over two thousand years. It runs from the east to the west in North China . It is about 6,300 kilometers    46     . It is often   47          “The Ten-thousand- Li Great Wall”. It is one of the “Seven Wonders” of the ancient world.
The Great Wall is    48     for ten men to walk side by side. Horses can also run along it, too. The Great Wall    49    stones and bricks(砖). There are huge stones on       50    side and on the highest part. But now some sections of it are worn out.
There are tall watchtowers along the Great Wall. Once upon a time, the soldiers kept    51     the enemies(敌人) in the watchtowers day and night. They made   52    on the towers to   53    each other when the enemies came.
Nowadays we don’t use the Great Wall to keep away the enemies any more. It is a famous place of  54    to all the people in the world. Every year  55     people come to visit it from all over the world.
小题1:
A. wideB.tallC.longD.high
小题2:
A. callingB.callC.calledD.calls
小题3:
A. enough wideB.wide enoughC. more enoughD.too enough
小题4:
A. was made ofB.was made fromC.was made inD.was made by
小题5:
A. bothB.allC.eachD.either
小题6:
A. seeingB.watchingC.lookingD.reading
小题7:
A. fireB.a kiteC.a faceD.a toy
小题8:
A. tellB.talkC.speakD.say
小题9:
A. interestedB.interestingC.interestD.interests
小题10:
A. thousandB.thousandsC.thousands ofD.thousand of
题型:单项选择题

三建汤功效与作用

题型:单项选择题

当变量X按一定数量减少时,变量Y也随之发生大致等量的减少,那么这两个变量之间存在()。

A、函数关系

B、直线正相关关系

C、直线负相关关系

D、曲线相关关系

题型:单项选择题

电压调节器用于调节()的输出电压。

A.牵引励磁机

B.测速发电机

C.同步牵引发电机

D.启动发电机

题型:单项选择题

工作设计改变了员工和()的基本关系

A、工作

B、岗位

C、目标

D、环境

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