王伯伯将纯种甜玉米和纯种非甜玉米间行种植,收获时发现甜玉米果穗上有非甜玉米籽粒,

题型:选择题

问题:

王伯伯将纯种甜玉米和纯种非甜玉米间行种植,收获时发现甜玉米果穗上有非甜玉米籽粒,而非甜玉米果穗上却无甜玉米籽粒,其原因是  [ ]

A.甜是显性性状

B.非甜是显性状性

C.相互混杂

D.相互选择

考点:基因的显性和隐性
题型:选择题

A green life sometimes just needs a good idea like sharing cars.It’s a new way of thinking.You can use a car but you don’t need to own it Now the idea of “car sharing” has become       in many countries.

As we know ,most cars       in garages for much time.In fact,we drive our own cars          one or two hours a day on average(平均).    When we don’t use them,we have to pay for parking and        things.That costs too much money.To       money,some people come up with the idea of “car sharing”.If we share a car, we’ll only        when we use it.

Now many people are starting to do car sharing.In Switzerland,almost 40,000 people have          it.Japan is also trying to make       popular around the country.

Car sharing is the beginning of a new idea in      .It is also very nice for us to travel everywhere    buying a car.Do you love to share a car with others?                                                                         

小题1:A.popular            B.interesting         C.funny          

小题2:A.are washed         B.are driven         C.are parked      

小题3:A.as far as            B.as long as          C.as much as      

小题4:A.the other           B.others             C.other        

小题5:A.make              B.save              C.find            

小题6:A.spend              B.cost              C.pay

小题7:A.joined             B.covered            C.take part

小题8:A.time saving         B.money saving       C.car sharing   

小题9:A.fashion           B.transportation       C. the world

小题10:A.without          B.with              C.by 

题型:选择题

在提速道岔转辙部分及可动心轨辙叉部分拨道时,应有电务部门配合。

题型:选择题

患者男,30岁,工人,餐前半小时突发上腹部剧痛,很快扩散至右下腹,疼痛呈持续性,无放射,伴有恶心和呕吐。发病3h后来院就诊。查体:体温37℃,心率70次/min,血压16/9kPa(120/70mmHg),腹平,全腹压痛,轻度反跳痛,以右上腹及中上腹为甚,肝浊音界不清,肠鸣音微弱。腹部超声未见明显病变,腹腔无渗液。

患者腹痛的原因是()

A.细菌性腹膜炎

B.化学性腹膜炎

C.肠道梗阻

D.消化性溃疡

E.肠麻痹

题型:选择题

煤矿矿井供电应有两回路电源线路

题型:选择题

The Rational Unified Process (RUP) is a software engineering process, which captures many of best practices in modern software development. The notions of (21) and scenarios have been proven to be an excellent way to capture function requirements. RUP can be described in two dimensions - time and content. In the time dimension, the software lifecycle is broken into cycles. Each cycle is divided into four consecutive (22) which is concluded with a well-defined (23) and can be further broken down into (24) - a complete development loop resulting in a release of an executable product, a subset of the final product under development, which grows incrementally to become the final system. The content structure refers to the disciplines, which group (25) logically by nature.

21()

A.artifacts

B.use-cases

C.actors

D.workers

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