DeltaV系统继承了PROVOX和RS3系统的优势,系统完全可以更好、更简单地完成

题型:单项选择题

问题:

DeltaV系统继承了PROVOX和RS3系统的优势,系统完全可以更好、更简单地完成,并且提供了最简单地向现场总线过渡的解决方案,下面关于DeltaV系统不正确的是()。

A、DeltaV系统的控制网络采用工业以太网

B、系统规模可变,在线升级扩展

C、控制器卡件的智能化:即插即用,带电热插拔

D、DeltaV系统都提供了相应的常规IO卡件进行处理,用户不可以随时方便地过渡到现场总线

考点:海洋油气操作工考试初级海洋油气操作工考试初级海洋油气操作工考试题库
题型:单项选择题

—Is Bob still performing?

—I'm afraid not.He is said ________ the stage already as he has become an official.

A.to have left

B.to leave

C.to have been left

D.to be left

题型:单项选择题

为保证胶的质量,碳酸钙粉、植物油和松香这三种制胶原料的配比应为7:1:10。

题型:单项选择题

Last December, I performed 30 shows in 11 days. I knew it would be a tiring tour before I set off, but I just wanted to be there to support our men and women.

From the minute I walked onstage the afternoon I arrived at the army, the soldiers were cheering, singing along at the top of their voices. I had done hundreds of concerts, but it was my first time to perform for troops. Looking at the smiling faces of these soldiers --- some of them only teenagers --- I felt great joy moving through me. They were the loveliest fans I had ever met. Then, from out of nowhere, words came into my head. “I want to play you something new … a song just came in my head minutes ago. It’s called Here with Me,” I told them. Cheers rang out. As I sang, I could see the tears in some of soldiers’ eyes. I finished to thunderous applause.

At the autograph(亲笔签名)part afterward, one of the soldiers took out a picture of a high school student. “This is my girl. You know, I miss her so much,” he said. “That new song you sang … it meant so much to me. Those were the words I’ve always wanted to tell her.

I realized that the song wasn’t about me and that it was, in fact, a gift for these men and women. I played it in every concert after that, always with the same unbelievable reaction.

On the long plane ride home I kept thinking about the soldiers I’d met. They risked their lives every day to defend our country, yet they were grateful for a simple concert. I decided to record the new song to thank our men and women           in uniform(制服).

小题1:Which of the following words can best take the place of the word “troops” in the second paragraph?

A.officials

B.teenagers

C.soldiers

D.students小题2:When the author performed on the stage, he felt _____.

A.pleased

B.nervous

C.confident

D.worried小题3:What might be the topic of the new song?

A.The tiring army life

B.The danger of being a soldier

C.The excitement of going to a concert

D.The family one misses小题4:From the text, we can infer that the author _____.

A.served in the army before

B.received many gifts during shows

C.was impressed by the soldiers

D.always cared for the soldiers小题5:The passage is most probably written by a(n) _____.

A.dancer

B.teacher

C.singer

D.official leader

题型:单项选择题

游览中,有老人希望休息,地陪一定要妥善安排并告诉他多少时间后到某景观前与旅游团会合。

题型:单项选择题

起飞期间为避免离场喷气飞机的翼尖涡流,飞行员应()。

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