It’s a long-awaited day for China. The n

题型:阅读理解

问题:

It’s a long-awaited day for China. The navy now has its first aircraft carrier(航空母舰), Liaoning.

It’s a unique experience to get to know the life in the carrier. The carrier is just like a small city on the sea. It has all the functions for daily life. There are 4 words to sum up its characters: big, small, much and high. The carrier Liaoning is such a huge one that the total length of the whole corridor(过道)could reach over 20 kilometers. But the living space for the sailors(水手)is quite small. That’s because the carrier is designed for researching purposes, rather than comfortable living. Over 1,000 sailors, both men and women, are living onboard. They are arranged among over 3,000 tiny rooms below the deck. For visitors, it’s so easy to get lost. So the first thing the new sailors have to learn is their way around. The number of female sailors is much less than that of the males, taking about 5 percent of the total. But they play a key role in carrying out some special missions.

Also, you will be surprised by the high level of education of today’s sailors. The captain said that over 90 percent of the sailors are college graduates. Six hold Doctor’s Degrees and 45 have a Master’s. The whole team is young but vigorous. The complex work on the carrier requires high management abilities for the commanders onboard(在船上).

小题1:Why do we visitors get lost easily inside the carrier?

A.Because they don’t have a map.

B.Because the living space is quite small.

C.Because there are too many corridors for rooms.

D.Because the corridor inside the carrier is too long.小题2:What does the word “high” in Line 6 refer to(指代)?

A.The aircraft carrier is high since it is just like a small city.

B.Most of the soldiers received good education.

C.The expense(花费)to run a carrier is high.

D.The high-level of their training.小题3:Which of the following is NOT TRUE according to the passage?

A.Liaoning is our country’s first aircraft carrier.

B.Most of the sailors on the carrier are college graduates.

C.There are far fewer women sailors than men sailors on the carrier.

D.It is comfortable for the sailors to live in the carrier.

考点:健康环保类阅读科教类阅读
题型:阅读理解

用DIS研究一定质量气体在温度不变时,压强与体积关系的实验装置如图1所示,用一个带有刻度的注射器及DIS实验系统来探究气体的压强与体积关系。实验中气体的质量保持不变,气体的体积直接读出,气体的压强是由图中压强传感器等计算机辅助系统得到。请回答下列有关问题。

小题1:完成本实验的基本要求是(多选) (     )

A.在等温条件下操作。

B.封闭气体的容器密封良好。

C.必须弄清所封闭气体的质量。

D.气体的压强和体积必须用国际单位。小题2:甲同学在做本实验时,按实验要求组装好实验装置,然后缓慢推动活塞,使注射器内空气柱从初始体积20.0 mL减为12.0 mL。实验共测出五组数据,每次体积值直接从注射器的刻度读出并输入计算机,同时由压强传感器测得对应体积的压强值。实验完成后,计算机屏幕上显示出如下表所示的实验结果:

序号V(mL)p(×105Pa)pV(×105Pa·mL)
120.01.001 020.020
218.01.095 219.714
316.01.231 319.701
414.01.403 019.642
512.01.635 119.621
 

仔细观察不难发现,pV(×105Pa·mL)一栏中的数值越来越小,造成这一现象的原因可能是 (单选)                                             (       )

A. 实验时注射器活塞与筒壁间的摩擦力不断增大。

B.实验时环境温度增大了。

C.实验时外界大气压强发生了变化。

D.实验时注射器的空气向外发生了泄漏。

小题3:根据你在第(2)题中的选择,为了减小误差,你应当采取的措施是: 

______________ ______________ 

小题4:乙同学实验操作规范正确,根据实验数据画出如图2所示的V-1/p图线不过坐标原点,则截距b代表________________________________________。

题型:阅读理解

关于管家基因的叙述正确的是()

A.管家基因的表达是基本的表达

B.管家基因的表达随外环境信号的变化而变化

C.管家基因的表达可以被诱导物所诱导

D.管家基因在生物个体的某一生长阶段持续表达

E.以上都不对

题型:阅读理解

化疗病人考虑停药的白细胞计数为( )。

A.1.0×109/L
B.2.0×109/L
C.3.0×109/L
D.4.0×109/L
E.5.0×109/L

题型:阅读理解

在货物进出境过程中,有时还需办理“报检、报验”手续,一般而言,报检、报验手续要先于报关手续办理。( )

题型:阅读理解

组合密封启动前,首先应向密封腔内加入()。

A、水

B、汽油

C、缓冲液

D、氮气

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