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加强现代信息基础建设主要是促进（）、（）和计算机三网融合。

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Can you _______ the differences between the two pictures

A. tell
B. talk
C. speak
D. say

Passage 2 Questions 6 to 10 are based on the following passage:Humans may not have landed on Mars (火星) justyet, but that isn’t shopping a European company from devising a plan to sendfour people to the Red Planet within the next few years. (78) This project,called Mars One, aims to send a small group of people to Mars in 2022 andeventually establish a permanent colony on the planet. "Everything we need to go to Marsexists," said Mars One co.founder Bas Lansdorp in March 2014. "Wehave the rockets to send people to Mars, the equipment to land on Mars, therobots to prepare the settlement for humans. For a one.way mission, all thetechnology exists." Yet the four astronauts (宇航员) chosen for the trip will be stuck on Mars—forever. And despite MarsOne’s thorough planning, there are a number of challengesthat may prevent the mission from ever taking place. (79) The biggest roadblock could be the mission’s huge cost ($6 billion). However, Lansdorp is confidentthat Mars One will be able to fund the project by selling the broadcast rightsfor the mission and subsequent experiences living on the planet.Those broadcast rights will also play apart in helping to select the people who will be sent to Mars. Lansdorp said the company will hold a selection process similar to a reality show. Lansdorp is expecting at least 1 million applications from people around the world. In additon to the cost, several other potential problems could inhibit (阻止)themission to Mars.“It’s even more challengingto send people there with life support, with food, with air, with all the other things like books, entertainment, means ofcommunication and of providing for their own resources for a long stay onMars," said Adam Baker. senior lecturer in spaceengineering at Kingston University in London. "The sheer size of therockets you’d need to do this would be absolutely colossal.” Which of the followingis an appropriate title for this passage（）

A. Ready for a Round Trip to Mars
B. Ready for a Short Visit to Mars
C. Ready for a One.way Trip to Mars
D. Ready for a Walk on Mars

Do you know the _______ of the saying I just quoted

A. resource
B. source
C. course
D. cause

一个栈(Stack)对象有三种状态：S1——栈空；S2——栈非空也非满；S3——栈满。则各个状态的条件如下：S1：(t0)创建栈对象时初始化，这是系统做的(t1)在S2状态下执行置空运算setEmpty()(t2)在S3状态下执行置空运算setEmpty()(t3)在S2状态下执行出栈运算Pop()S2：(t4)在S1状态下执行进栈运算Push()(t5)在S3状态下执行出栈运算Pop()S3：(t6)在S2状态下执行进栈运算Push()为简化问题，假设栈Stack的容量为2，栈元素的数据类型为整数。要求：计算该状态迁移图的MeCabe环路复杂性；