群落演替。

盐湖区某村春、夏季节生产粮食，秋、冬季节利用塑料大棚生产蔬菜，同时开办养猪场，各项收入都占一定比重。读下图，回答1～2题。

1．该村的农业地域类型是[     ]

A．水稻种植业

B．乳畜业    

C．混合农业      

D．商品谷物农业

2．利用塑料大棚种植蔬菜可以改善[     ]

A．光照条件  

B．热量条件  

C．降水条件    

D．土壤条件

用惰性电极电解氯化铜溶液，反应开始时阴极和阳极上分别析出的物质是（ ）

A．H₂和Cl₂

B．Cu和O₂

C．Cu和Cl₂

D．H₂和O₂

有一同胞姐弟，父母去世后，弟弟以女儿不能继承遗产的习俗为由，独占父母遗产，姐姐起诉法院，法院依法判决姐弟共同继承。这说明

① 公民的继承权受法律保护

② 只有法定继承人有权继承

③ 分配遗产应遵循男女平等的原则

④ 习俗与法律发生冲突时，应服从法律

A．②③④

B．①③④

C．①②③

D．①②④

甲公司拥有“喜洋洋”注册商标。根据商标法律制度的规定，下列各项中，属于侵犯甲公司注册商标专用权的行为有( )。

A．乙公司未经甲公司同意，将甲公司的产品更换为乙公司的商标后对外销售

B．丙公司销售不知道是侵犯了甲公司注册商标专用权的商品，丙公司能够证明该商品是自己合法取得的并能够说明提供者

C．丁公司将“喜洋洋”作为企业的字号在相同或者类似商品上突出使用，容易使相关公众产生误认，但尚未给甲公司造成经济损失

D．戊公司将“喜洋洋”注册为域名，并且通过该域名进行相关商品交易的电子商务，容易使相关公众产生误认

Next Stop: Planet Mars

Fly me to the moon? That’s not far enough. On September 14, 2011, NASA released designs for a superrocket, the Space Launch System (SLS). This time the final destination will be Mars.

The SLS is a huge, liquid-fuelled rocket. If it is fully developed, it will be the most powerful rocket ever built. Its lift capability will be much bigger than that of the space shuttle of Saturn 5, the rocket that sent the Apollo missions to the moon.

NASA is planning to launch its first unmanned test flight in 2017. It is hoped that the first crew will fly in 2021 and astronauts will make it to a nearby asteroid(小行星) in 2025. NASA hopes to send the rocket and astronauts to Mars from the asteroid by the 2030s, according to the Associated Press (AP).

NASA used liquid rockets to send Apollo, Gemini and Mercury into space, but later changed to solid rockets boosters(助推火箭) because they were cheaper. Tragically, however, a booster flaw(缺陷) caused the space shuttle Challenger to crash in 1986. The new project plans to return to liquid fuel.

According to AP, the rockets will at first be able to carry 77 to 110 tons of payload(净载重量). Eventually they will be able to carry 143 tons into space, maybe even as many as 165 tons, NASA officials said. By comparison, the Saturn 5 booster could lift 130 tons and the space shuttle just 27 tons.

However, unlike reusable shuttles, these powerful rockets are mostly one use only. New ones have to be built for every launch. This will be very costly.

NASA estimates that it will cost about $3 billion (19 billion yuan) per year, or $18 billion until the first test flight in 2017. NASA hopes to make money by allowing private companies to send astronauts to the International Space Station like giant taxi services, so that the program can be “sustainable”.

“This is perhaps the biggest thing for space exploration in decades,” said Senator Bill Nelson, a former astronaut. “The goal is to fly humans safely beyond low-Earth orbit(轨道) and deep into outer space where we cannot only survive, but one day also live.”

小题1:What is the outstanding feature of the SLS?

A．It’s equipped with an advanced control system.

B．It’s the first unmanned space shuttle in the world.

C．It’s the only vehicle that can fly astronauts to the moon.

D．It can send a lot more goods and passengers into space.小题2:What is Saturn 5?

A．An aircraft that had a deadly flaw and crashed in 1986.

B．A series of rockets that once sent astronauts to the moon.

C．An unmanned space shuttle that was once famous in the world.

D．A kind of launch vehicle that will be used to carry astronauts to Mars.小题3:NASA plans to use liquid fuel in the new project because ______ than solid rockets boosters.

A．it is less costly

B．it is much safer

C．it can last longer

D．it is more environmentally friendly小题4:According to NASA’s schedule, it will take ______ years to fully complete the SLS program.

A．about 6

B．about 10

C．less than 14

D．more than 19小题5:It can be inferred from the passage that ______.

A．the SLS program is planning to make reusable rockets

B．the goal of the SLS program is to enable humans to live on the moon

C．the US government may not have provided enough money for the SLS program

D．NASA will use SLS as a space taxi between the Earth and Mars