有毒气体检测仪的制造厂家和型号规格有哪些？

阅读理解

       Whenever the sun dropped and the blue sky came up, my father and I used to climb the mountain

near my house. Walking together, my father and I used to have a lot of conversations through which I

learned lessons from his experiences. He always told me, "You should have goals like climbing the

mountain." Without the mountain-climbing that we both enjoyed . We couldn't have enough time to spend

together because my father was very busy. I really got a lot from mountain-climbing. It gave me time to

talk with my father and to be in deep thought as well as develop my patience (耐力).

       Once we climbed a very high mountain. It was so challenging for me because I was only ten years

old. During the first few hours of climbing . I enjoyed the flowers and trees, and the birds' singing, but as

time passed, I got a pain in both of my legs. I wanted to quit climbing. In fact, I hated it at that mountain,

but my father said to me, "You can always see a beautiful sky at the top of the mountain, but you can't see

it before you reach the top. Only there at the top, can you see all of the nice things, just like in life."

       At that time, I was too young to understand his words. But later after that, I got new hope and

confidence. I found myself standing at the top of the sky, which was as clear as crystal (水晶).

1. The passage tells us that mountain-climbing was _____for Father and Son.

A. hard

B. enjoyable

C. painful

D. comfortable

2. The word "quit" in the passage means "______".

A. carry on

B. put off

C. give up

D. pick up

3. Which of the following is the closest (最接近的) in meaning to the father's words in the second

paragraph?

A. You will get all you need at the top of the mountain.

B. The sky is always as clear as crystal.

C. You can find life is full of nice things.

D. Never give up half-way.

4. We can infer (推断) from the last paragraph that ______.

A. the writer was very successful in his life

B. the writer reached the top of the mountain

C. though the writer was young, he could understand his father

D. the writer used to stop half-way when he climbed the mountain

5. The best title (题目) for the passage is "______".

A. Reaching the Top of the Mountain

B. Standing at the Top of the Mountain

C. Conversations between Father and Son

D. How to Get to the Top of the Mountain

女，30岁，已婚未育，因经量增多、经期延长1年就诊。妇科检查：子宫如孕3个月大，表面不平，宫底触及鸡卵大质硬结节，子宫右侧触及鸭卵大质硬肿物，活动度大，似与宫体相连。

该例首选有价值的辅助检查为（）

A.盆腔X线摄片

B.B型超声检查

C.腹腔镜检查

D.宫腔镜检查

E.检测血清CA₁₂₅值

如果想从字符串“计算机等级考试”中取出“考试”，这两个字，下列函数使用正确的是( )。

A．SUBSTR("计算机等级考试",11)

B．SUBSTR("计算机等级考试",5,3)

C．RIGHT("计算机等级考试",2)

D．LEFT("计算机等级考试",4)

多路复用技术主要包括频分、（）、码分多路复用技术。

城市规划既是一门科学，一门艺术，又是一项社会实践，一项公众事业，其作为一门独立的科学出现之后，所面临的就不仅仅是城市发展的现实问题，而是与社会思潮、政治进步、技术水平提高等更广阔的领域发生关系。公众参与是社会分层、公众和利益集团需求多样化的情况下所采取的一种协调对策。 这段文字主要说明的是( )。

A．让公众参与城市规划

B．城市规划是一门科学，一门艺术

C．城市规划学科面临现实挑战

D．城市规划与社会生活紧密相连