【判断题】【消耗次数：1】
目前，设备及管道表面处理的常用方法有工具除锈、喷射或抛射除锈
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
关于钢结构构件除锈的说法错误的是()
①
涂刷油漆前必须将构件表面的毛刺，铁锈，油污以及附着物清除干净，使钢材露出铁灰色，以增加油漆与表面的黏结力
②
人工除锈操作简单，但效率低，除锈不彻底，质量不易保证
③
防止酸液会加速锈蚀作用，钢结构构件不可进行酸洗
④
喷砂除锈效率高，除锈彻底，是一种先进的除锈工艺
随机题目
【多选题】
Suddenly,_____________ , a good idea came to her.
①
to her disappointment
②
to her great joy
③
to her surprise
④
to her delight
【多选题】
The river_____________ the two towns.
①
finds a way
②
keeps apart
③
separates
④
leads to
【多选题】
She expressed her opinions_____________ change their ideas.
①
so that
②
so as to
③
in order to
④
in order that
【多选题】
All the students in our school ____________ in the hall to hear a lecture.
①
collected
②
gathered
③
assembled
④
doubled
【多选题】
This story_____________ a very brave (勇敢的) young girl.
①
is to
②
is about
③
concludes
④
concerns
【单选题】
Computer are being used more and more____________ in the world today.
①
extensively
②
expensively
③
exclusively
④
exactly
【单选题】
Anger is a normal emotion that we all feel from time to time. Some people express anger openly in a calm reasonable way. Some explode with anger, and scream and shout. But other people keep their anger inside. They can not or will not express it. This is called repressing anger. Many doctors think that repressing anger is more dangerous to a person’s health than expressing it. They say that when a person is angry, the brain gives out the same hormones (荷尔蒙) as that are produced during tense and nervous situations. They speed the heart rate and raise blood pressure, so the person feels excited and ready to act. Repressing these feelings will only make the feelings continue, and this can lead to many medical problems. To prevent these problems, these doctors suggest letting the anger out by expressing it freely. But recently some other doctors question this. They say that people who express anger repeatedly and violently become, in fact, more but not less angry. And this could cause medical problems. However, some doctors say that both repressing and expressing anger can be dangerous. They believe that those who express anger strongly may be more likely to develop heart diseases, and that those who keep their anger inside may face a greater danger of high blood pressure. Doctors say the solution is to learn how to deal with anger. The first step is to admit that you are angry and to recognize the real cause of the anger, and then to decide if the cause is serious enough to get angry about. If it is, do not express your anger while angry. Wait until your anger has cooled down, and express yourself calmly and reasonably. Doctors also say that a good way to deal with anger is to find humor in the situation that has made you angry, for laughter is much healthier than anger.According to the passage, which of the following about hormones is correct?
①
Hormones will cause people to get anxious.
②
Hormones will increase when one gets angry.
③
The brain produces hormones when one’s blood pressure rises.
④
The brain produces hormones when one has medical problems.
【单选题】
It is no good ___________ to know what you dont know.
①
pretend
②
to pretend
③
pretending
④
pretends