当系统频率发生变化后,发电厂依据调度员命令增减负荷,属于频率的()调整。A、一次B、

题型:单项选择题

问题:

当系统频率发生变化后,发电厂依据调度员命令增减负荷,属于频率的()调整。

A、一次

B、二次

C、三次

D、四次

考点:火电电力职业技能鉴定考试水电自动装置检修工(技师)水电自动装置检修工(技师)题库
题型:单项选择题

阅读理解。

Dear Sir or Madam,

     Last Thursday, I traveled on the 8:00 a.m. train from Glasgow to London King's Cross and I was quite

angry with the service of your company.

     The train didn't come on time and it was forty minutes late when it left Glasgow. A man at the station

said sorry to us, but he didn't give us any reasons for the delay(误点). We then had further delays on the

way and had to wait another thirty minutes. As a result, I missed my plane from London to Frankfurt and

had to wait for several hours.

     What's more, the service on the train was also very poor, The trip took more than five hours. Unluckily,

we could buy nothing but some soft drinks on the train. Worst of all, something was wrong with the air

conditioning (空调系统) and it got hotter and hotter in the train.

     Before we reached King's Cross, the temperature was over 40°C. Because of your poor service, I feel

you should pay me compensation (赔偿).

     I am looking forward to hearing from you.

                                                                                                                              Yours faithfully,

                                                                                                                              David Roberson

1. When did the train leave Glasgow?

A. At 8:00 a.m.

B. At 8:40 a.m.

C. At 9:00 a.m.

D. At 9:20 a.m.

2. How did David go to Frankfurt from London?

A. By plane.

B. By bus.

C. By car.

D. By train.

3. How long did David stay on the train? 

A.40 minutes.

B. 30 minutes.

C. 70 minutes.

D. Over 5 hours.

4. What could David buy on the train?

A. Hot dogs.

B. Sandwiches.

C. Soft drinks.

D. Hamburgers.

5. Which of the following is NOT true?

A. This is a complaint letter.

B. David was very pleased with the trip.

C. The service of the company was very poor.

D. There was something wrong with the air conditioning on the train.

题型:单项选择题

按照有关规定()是避孕药具的适宜仓储条件。

A.温度0℃~35℃,湿度45%~75%

B.温度0℃~30℃,湿度45%~75%

C.温度0℃~20℃,湿度45%~75%

D.温度0℃~30℃,湿度45%~85%

题型:单项选择题

分手不仅令人心理痛苦,还可能造成身体疼痛。美国研究人员征募40名志愿者,他们在过去的半年中被迫与配偶分手,至今依然相当介意遭人拒绝。研究人员借助功能性磁共振成像技术观察志愿者的大脑活动,结果发现他们对分手等社会拒绝产生的大脑部位与对躯体疼痛反应的部位重合。因此,分手这类社会拒绝行为会引起他们的躯体疼痛。从哲学上看( )

A.功能性磁共振成像技术是目前进行大脑定位的常用方法

B.生理与心理反应可以通过大脑产生关联

C.科学实验是获得正确认识的唯一途径

D.分手造成的心理痛苦是主观的,身体疼痛是客观的

题型:单项选择题

下列哪项不是清炒法的操作工艺()

A.分次炒制

B.冷锅下药

C.大小分档

D.时间适宜

E.火力适当

题型:单项选择题

土方施工中,对开槽范围内各种障碍物的保护措施应符合的规定不包括()。

A.可以不取得所属单位的同意和配合

B.给水、排水、燃气、电缆等地下管线及构筑物必须能正常使用

C.加固后的线杆、树木等必须稳固

D.各相邻建筑物和地上设施在施工中和施工后,不得发生沉降、倾斜、塌陷

更多题库