目前,根据国家规定以及国家环保部门的要求,出入境检验检疫机构对进口再生物资(俗称废料

题型:单项选择题

问题:

目前,根据国家规定以及国家环保部门的要求,出入境检验检疫机构对进口再生物资(俗称废料)实施的是( )。

A.境外检验
B.口岸检验
C.境内检验
D.转运检验

考点:报检员考试报检员
题型:单项选择题

教师在教学过程中运用得最普遍最经常的教育手段是()。

A.教学能力

B.教育方法

C.言传身教

D.教育措施

题型:单项选择题

提醒客户付款的方式主要有()。

A、电话

B、上门

C、邮件

D、信函

E、传真

题型:单项选择题


阅读下列算法说明和流程图,根据要求回答问题1~问题3。
[说明]
某机器上需要处理n个作业job1,job2,…,jobn,其中:
(1)每个作业jobi(1≤i≤n)的编号为i,jobi有一个收益值P[i]和最后期限值d[i];
(2)机器在一个时刻只能处理一个作业,而且每个作业需要一个单位时间进行处理,一旦作业开始就不可中断,每个作业的最后期限值为单位时间的正整数倍;
(3)job1~jobn的收益值呈非递增顺序排列,即p[1]≥p[2]≥…≥p[n];
(4)如果作业jobi在其期限之内完成,则获得收益p[i];如果在其期限之后完成,则没有收益。
为获得较高的收益,采用贪心策略求解在期限之内完成的作业序列。图3-25是基于贪心策略求解该问题的流程图。
(1)整型数组J[]有n个存储单元,变量k表示在期限之内完成的作业数,J[1..k]存储所有能够在期限内完成的作业编号,数组J[1..k)里的作业按其最后期限非递减排序,即d[J[1]]≤…≤d[J[k]]。
(2)为了便于在数组J中加入作业,增加一个虚拟作业job0,并令d[0]=0,J[0]=0。
(3)算法大致思想是:先将作业job1的编号1放入J[1],然后,依次对每个作业jobi(2≤i≤n)进行判定,看其能否插入到数组J中。若能,则将其编号插入到数组J的适当位置,并保证J中作业按其最后期限非递减排列;否则不插入。
jobi能插入数组J的充要条件是:jobi和数组J中已有作业均能在其期限之内完成。
(4)流程图中的主要变量说明如下。
i:循环控制变量,表示作业的编号;
k:表示在期限内完成的作业数;
r:若jobi能插入数组J,则其在数组J中的位置为r+1;
q:循环控制变量,用于移动数组J中的元素。

[问题1]
请将图3-25中的(1)~(3)空缺处的内容填写完整。

题型:单项选择题

The China boom is by now a well-documented phenomenon. Who hasn’t (1) the Middle Kingdom’s astounding economic growth (8 percent annually), its mesmerizing (2) market (1.2 billion people), the investment ardor of foreign suitors ($40 billion in foreign direct investment last year (3) ) China is an economic juggernaut. (4) Nicholas Lardy of the Brookings Institution, a Washington D. C.-based think tank,

" No country has (5) its foreign trade as fast as China over the last 20 years. Japan (6) its foreign trade over a 20-year period; China’s foreign trade as quintupled. They’ve become the pre-eminent producer of labor-intensive (7) goods in the world " . But there’s been (8) from the dazzling China growth story—namely, the Chinese multinational. No major Chinese companies have (9) established themselves, or their brands, (10) the global stage. But as Haier shows, that is starting to change. (11) 100 years of poverty and chaos, of being overshadowed by foreign countries and multinationals, Chinese industrial companies are starting to (12) on the world.A new generation of large and credible firms has (13) in China in the electronics, appliance and even high-tech sectors. Some have reached critical mass on the mainland and are now (14) new outlets for their production—through exports and by building Chinese factories abroad, chiefly in Southeast Asia. One example: China’s investment in Malaysia (15) from $8 million in 2000 to $766 million in the first half of this year. (16) China’s export prowess, it will be years (17) Chinese firms achieve the managerial and operational expertise of Western and Japanese multinationals. For one thing, many of its best companies are still at least partially state-owned. (18) , China has a shortage of managerial talent and little notion of marketing and brand-building. Its companies are also (19) by the country’s long tradition of central planning, inefficient use of capital and antiquated distribution system, (20) makes building national companies a challenge.

(1)处填()

A.listened

B.listenedto

C.heard

D.heardof

题型:单项选择题

圆轴扭转时圆轴截面上任意一点的()与该点到圆心的半径成正比。

A.切应力

B.剪应力

C.正应力

D.拉应力

更多题库