调心托辊多用在()式输送机上。 A.吊挂 B.固定 C.可伸缩

题型:单项选择题

问题:

调心托辊多用在()式输送机上。

A.吊挂

B.固定

C.可伸缩

考点:输送机司机考试胶带输送机司机考试胶带输送机司机考试题库
题型:单项选择题

The first telephone cards, produced in 1976, were Italian. Five years later the first British card appeared, and now you can buy cards in more than a hundred countries. People usually start collecting cards because they are small and light and you do not need much space for them. It is also a cheap hobby for beginners, although for some people it becomes a serious business. In Paris, for example, there is a market where you can only buy telephone cards, and some cards cost up to £4,000.The first Japanese card has a value of about £28,000. Most people only see cards with prices like these in their collectors’ magazine.

小题1: When were the first Italian telephone cards produced?

小题2:How many countries can produce telephone cards now?

小题3:Where can we find a market to buy telephone cards?

小题4:What is the price of the first Japanese telephone card?

小题5:In which magazine do most people see cards with prices?

题型:单项选择题

读长江水系图,完成下列要求。(每空1分,共13分)

(1)填写下列地理事物的名称。

         山脉

          

      水电站

        

支流:A            B            C            

城市:a            b             c            

(2)长江水能资源主要集中在    (上、中、下)游河段,占全国1/3;长江水运价值巨大,干流宜宾以下四季通航,有“          ”之称;长江进入80年代后,几乎年年发生洪灾,因此治理长江的首要任务是                               

题型:单项选择题

中国在世界上哪两次军事变革丧失了机遇?

题型:单项选择题

均匀级配滤料

题型:单项选择题

中国城市妇女前五位死因不包括()

A.恶性肿瘤

B.心脏病

C.自杀

D.损伤、中毒等外部疾病

E.呼吸系统疾病

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