下列不属于栏杆与梯段的连接方法的是( )。A.螺栓连接B.法兰连接C.预留孔洞插接

题型:单项选择题

问题:

下列不属于栏杆与梯段的连接方法的是( )。

A.螺栓连接
B.法兰连接
C.预留孔洞插接
D.预埋铁件焊接

考点:造价工程师建设工程技术与计量(土建)建设工程技术与计量(土建工程部分)
题型:单项选择题

阅读理解。

Dear Henry,

     How are you? I'm writing to you in my school. It's a middle school. Our school is very nice. There are

about 2000 students and 150 teachers in our school. There are three grades and in each grade there are ten

classes. I'm in Class Two, Grade Seven. I go to school from Monday to Friday. There are five classes in

the morning and two in the afternoon. We play games every afternoon after class. I like playing soccer very

much. I often play it with my classmates.

      I have three good friends. One of them is Li Lei. He is a Chinese boy. He often helps me with my

Chinese. I help him study English. The others are twins. They are Lucy and Lily. They come from England.

We often sing and dance together. We are very happy!

     Please write soon. 

                                                                                                                                                Yours, 

                                                                                                                                                  Ben

1. Where is Ben writing to Henry? [ ]

A. At home.

B. In his school.

C. On the playground.

D. Under the tree.

2. How many good friends does Ben have? [ ]

A. One.

B. Two.

C. Three.

D. Four.

3. How many classes are there in his school? [ ]

A. Ten.

B. Twenty.

C. Fifteen.

D. Thirty.

4. How many classes does Ben have a day? [ ]

A. Four.

B. Two.

C. Five.

D. Seven.

5. Which is right? [ ]

A. The twins are English.

B. Li Lei is a Japanese.

C. Ben has classes on Saturday.

D. Ben doesn't know Li Lei or the twins.

题型:单项选择题

裂解炉的“三率”不包括()。

A.三烯、三苯收率

B.转化率

C.热效率

D.开工率

题型:单项选择题

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,并在答题卡上将该项涂黑。选项中有两项为多余选项。

Eyesight plays a very important role in our daily life. Every waking moment, the eyes are working to see the world around us. Over forty percent of Americans worry about losing eyesight, but it's easy to include steps into our daily life to ensure healthy eyes. Here are five suggestions for a lifetime of healthy eyesight:

· Schedule yearly exams. 小题1:       Experts advise parents to bring babies 6 to 12 months of age to the doctor for a careful check. The good news is that millions of children now can have yearly eye exams and following treatment, including eyeglasses.

· Protect against UV rays (紫外线). Long-term stay in the sun creates risk to your eyes. No matter what the season is, it's extremely important to wear sunglasses.

  小题2:   

Give your eyes a break. Two-thirds of Americans spend up to seven hours a day using computers or other digital products.  小题3:   Experts recommend that people practice the 20/20/20 rule: every 20 minutes, take a 20-second break and look at something 20 feet away.

· 小题4:   As part of a healthy diet, eat more fruits and vegetables each day. Vitamins (维生素) C and E help protect eyesight and promote eye health.

·  Practice safe wear and care of contact lenses (隐形眼镜). Many Americans use contact lenses to improve their eyesight. While some follow the medical guidance for wearing contact lenses, many are breaking the rules and putting their eyesight at risk.   小题5:   Otherwise, you may have problems such as red eyes, pain in the eyes, or a more serious condition.

A.Eat your greens.

B.Eye care should begin early in life.

C.They can properly protect your eyes.

D.Stay in good shape by taking more vitamins.E. Parents usually don’t care about their own eyesight.

F. Always follow the doctor’s advice for appropriate wear.

G. This frequent eye activity increases the risk for eye tiredness.

题型:单项选择题

洞壁较薄,常有气液平面的是()

A.肺癌性空洞

B.急性原发性肺脓肿

C.浸润型肺结核空洞

D.支气管扩张合并感染

E.慢性纤维空洞型肺结核

题型:单项选择题

根端分()四个区域。

A、根冠

B、生长点(生长锥或者分生区)

C、伸长区

D、根毛区

E、根径

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