PGM-48钢轨打磨列车2#车的心盘距为（）。A、17680mm B、17720mm_爱下问搜题

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问题单项选择题

PGM-48钢轨打磨列车2#车的心盘距为（）。

A、17680mm

B、17720mm

C、17780mm

D、17820mm

答案

参考答案：C

阅读理解

一个名为“人口危险委员会”的组织对世界上100个大城市进行了调查。请根据上面12个主要大城市的调查表回答问题。

	Population (million)	% of income spent on food	Persons per room	% of houses with water and electricity	Telephone per 100 people	% of children in high schools
Tokyo	28.7	18	0.9	100	44	97
Mexico City	19.4	41	1.9	94	6	62
New York	17.4	16	0.5	99	56	95
St. Paul	17.2	50	0.8	100	16	67
Osaka	16.8	18	0.6	98	42	97
Seoul	15.8	34	2.0	100	22	90
Moscow	13.2	33	1.3	100	39	100
Bombay	12.9	57	4.2	85	5	49
Calcutta	12.8	60	3.0	57	2	49
Buenos Aires	12.4	40	1.3	86	14	51
Los Angeles	11.5	12	0.5	94	35	90
London	11.0	24	0.6	100	50	58

1. Of the following cities, people live in _____ spend least of their income on food.
    A. Mexico City
    B. Los Angeles
    C. Calcutta
    D. Bombay
2. Which city has the largest population?
    A. New York.
    B. Moscow.
    C. Tokyo.
    D. London.
3. The number of the students studying i

n high schools in Tokyo out of 100 students is the same as that
   of _____ .
    A. Seoul
    B. St. Paul
    C. Calcutta
    D. Osaka
4. In which city do all the houses have water and electricity?
    A. London.
    B. Los Angeles.
    C. New York.
    D. Bombay.
5. It is the most difficult for people in _____ to make a phone call.
    A. St Paul
    B. Mexico City
    C. Bombay
    D. Calcutta

单项选择题

（）不是信托的作用机制。

A．风险隔离

B．资产保全

C．第三方管理

D．权益重构