系统生存的必要条件是（），具有不断耗散系统的不可逆运动，不断产生熵。

A、病变多位于肺尖部

B、病变多以增生为主，易局限化

C、致病菌多经血管和淋巴道扩散

D、由结核杆菌再次感染引起

A、胸大肌

B、喙肱肌

C、前锯肌

D、肱二头肌

A、必然，偶然

B、偶然，必然

C、主观，客观

D、客观，主观

A、苏轼是北宋时期著名的文学家，其散文与欧阳修并称“欧苏”，诗与黄庭坚并称“苏黄”，词与辛弃疾并称“苏辛”，是豪放派的创始人。

B、本文与《后赤壁赋》都是元丰五年苏轼被贬到黄州所作，这期间他还写了词《念奴娇?赤壁怀古》。

C、本文通过主客问答，议论风生，表现出主人公乐观豁达的胸怀。

D、本文通过叙事，把景与情交融在一起，表现出作者“乐——悲——乐”的感情变化。

A、直肠

B、结肠

C、盲肠

D、十二指肠

E、空肠

A、学生 教师

B、学生 学生

C、教师 教师

D、教师 学生

Please translate this passage into Chinese： Spatial resolution is a measure of the smallest object that can be resolved by the sensor, or the area on the ground represented by each pixel. The finer the resolution, the lower the number. For instance, a spatial resolution of 79 meters is coarser than a spatial resolution of 10 meters. The terms large-scale imagery and small-scale imagery often refer to spatial resolution. Scale is the ratio of distance on a map as related to the true distance on the ground. Large-scale in remote sensing refers to imagery in which each pixel represents a small area on the ground, such as SPOT data, with a spatial resolution of 10 m or 20 m. Small scale refers to imagery in which each pixel represents a large area on the ground, such as Advanced Very High Resolution Radiometer (AVHRR) data, with a spatial resolution of 1.1 km. This terminology is derived from the fraction used to represent the scale of the map, such as 1:50,000. Small-scale imagery is represented by a small fraction (one over a very large number). Large-scale imagery is represented by a larger fraction (one over a smaller number). Generally, anything smaller than 1:250,000 is considered small-scale imagery.