仪表盘、柜、操作台的型钢底座安装时，上表面应保持水平，其水平度允许偏差为（）mm/m

入罐检查时，检修人员（）面具。

A、应佩带长管式面具

B、应佩带隔离式氧气呼吸器

C、应佩带过滤式面具

D、不需要

How would you like to wear the same underwear (内衣裤) for weeks? Owing to the work that has gone into developing intelligent materials, this may not be as   41  as it sounds. Self-cleaning clothes have now been created, and these new materials provide   42  resistance to dirt as well as water. As a result, they require much less cleaning than traditional materials.

The creation of self-cleaning clothes provides an example of how nature helps scientists develop better products. This self-cleaning nature is known as the “lotus effect”. The name comes, of course, from the lotus leaves, which are famous for growing in muddy lakes and rivers while remaining almost   43 

clean. By observing nature, scientists are   44  the qualities of the lotus leaves to the materials they have engineered. Because of this, some remarkable new products have been   45 . Among them are special windows that are resistant to dirt and water. A special   46  on these windows not only prevents dirt from sticking to their surfaces, but also allows dust to be easily washed off by the rain. In fact, these new windows have already been   47  to some cars. Even when traveling at high speed through rain, these cars never have to use their windshield wipers (雨刮器).

Although we have already seen some practical applications, even more dramatic   48  will be made in the future, and they will, perhaps, change our world completely. Undoubtedly, technology is an important development, and it will have an even bigger   49  on our lives.

生产力对教育具有决定作用。

6岁女孩，外伤致肱骨髁上伸直型骨折，经手法复位，石膏外固定，3小时后出现手麻，主动活动障碍，手发凉，此时的治疗应采取（）

A.立即拆除石膏，改用骨牵引治疗

B.观察2天，视情况采用相应的治疗措施

C.手术探查，手术治疗

D.应用血管扩张药

E.臂丛麻醉

关于毛发的移植下列哪项是错误的（）.

A、秃发的治疗

B、眉毛缺失的治疗

C、睫毛缺失的治疗

D、移植后的毛发应保持其固有的特性

E、毛发移植后，一般在半年后才能逐渐再生