按照保持和发展党的先进性的总体要求，努力实现大学生党员素质“五个显著提升”，“五个显

三级液化石油气加气站气罐总容积为（）m3。

A、V＞60

B、45＜V≤60

C、30＜V≤45

D、V≤30

在几千年人类文明发展进程中，亚洲、非洲、美洲、欧洲都留下了许多宝贵的文学、艺术和建筑遗产。下列文化遗产属于同一个大洲的是( )。

A．《伊索寓言》、《星夜》、比萨斜塔
B．杰内古城、泰姬陵、《战争与和平》
C．《麦田里的守望者》、《万叶集》、《哈姆雷特》
D．《我是猫》、《泰戈尔诗选》、马丘比丘

潜移默化：是指人的性格、思想和习惯等在不知不觉中受到外界影响而逐渐发生变化。
下列哪一项不是属于潜移默化( )

A．小王以前总是不爱开口，而到了一所大学后，由于他的同学都爱说话，三年后，他好像变了一个人，非常爱说话。

B．小李以前不爱看书，但在图书馆工作了一年后，由于那里的人都爱看书，他变得也爱看书了。

C．小张总觉得朋友不可信，但在他交了好多知心朋友之后，他逐渐对朋友改变了看法。

D．小赵以前学习不好，但自从来了个好老师，而且这个老师总是特别地帮助他，经过两个月的时间，他的成绩提高了许多。

About fifty years ago, plant physiologists set out to grow roots by themselves in solutions in laboratory flasks. The scientists found that the nutrition of isolated roots was quite simple. They required sugar and the usual minerals and vitamins. However, they did not require organic nitrogen compounds. These roots got along fine on mineral inorganic nitrogen. Roots are capable of making their own proteins and other organic compounds. These activities by roots require energy, of course. The process of respiration uses sugar to make the high energy compound ATP, which drives the biochemical reactions. Respiration also requires oxygen. Highly active roots require a good deal of oxygen.The study of isolated roots has provided an understanding of the relationship between shoots and roots in intact plants. The leaves of the shoots provide the roots with sugar and vitamins, and the roots provide the shoots with water and minerals. In addition, roots can provide the shoots with organic nitrogen compounds. This comes in handy for the growth of buds in the early spring when leaves are not yet functioning. Once leaves begin photosynthesizing, they produce protein, but only mature leaves can "export" protein to the rest of the plant in the form of amino acids.

The word "intact" in Paragraph 2 is closest in meaning to________.

A．mature

B．wild

C．whole

D．tiny

灭火中的通讯方式有内部电话、手提电子扩音器、直接通话、对讲机、无线电通信和（）

A.通信员联络

B.救生信号

C.手势