One reason human beings can thrive in
all kinds of climates is that they can control the qualities of the air in the
enclosed spaces in which they live. Air conditioning is the use of mechanical
systems to {{U}} (31) {{/U}} that control in such places {{U}} (32)
{{/U}} homes, offices, theaters, institutions, factories, airplanes, and
automobiles. The most familiar type of air conditioning is summertime cooling.,
Although important, this is {{U}} (33) {{/U}} one of several aspects of
air conditioning. Other applications {{U}} (34) {{/U}} the control of the
humidity (or air moisture), cleanliness, circulation of the air, and
heating. Tests have {{U}} (35) {{/U}} that people generally feel best {{U}} (36) {{/U}} certain temperature, humidity, and air velocity conditions. Temperatures can {{U}} (37) {{/U}} from 21.5°C with 70 percent rel A. alter B. range C. differ D. move [多选题]关于2021全年工作举措描述正确的是( )
A.坚持党建引领,强化党业融合,实现党建与生产经营互促共赢 B.稳中求进,坚决打赢重点份额争夺战,实现从跟随防御到主动进攻的转变 C.转型升级,全力打好蓝海价值开拓战,实现从满足需求到引领需求的转变 D.深化改革,高效推进核心能力攻坚战,实现从资源要素驱动向创新驱动的转变 [填空题]谷丙转氨酶属于()酶类,它的系统名称是()。
[单选题]应保证继电保护装置、( )等二次设备与一次设备同期投入。
A.状态评价系统 B.定值在线校核系统 C.线路在线监测系统 D.安全自动装置以及故障录波器 [单选题]接地网搭接烧焊时,至少要有(三个棱边)焊接。
A.一个棱边; B.两个棱边; C.三个棱边; D.四个棱边 [单选题]现场触电急救当采用胸外心脏按压法进行急救时,正确的抢救体位是( )。
A.A-俯卧位 B.B-侧卧位 C.C-仰卧位 D.D-坐姿 [单项选择]某省水利厅发现其附近有地热资源,希望开发两眼用于开采地下热水的地热井,但是并没有法律规定的有关的采矿许可证件。于是,便携带有关资料到某省地质矿产厅办理有关地热井的采矿登记手续,地质矿产厅依法给予了采矿登记。该采矿登记属于何种行为( )
A. 属于行政确认,因为采矿登记确认了采矿权 B. 属于行政内部审批,因为水利厅和地质矿产厅都属于行政机关 C. 属于行政许可,因为该采矿登记是依申请作出的且是依据法律作出的 D. 属于行政强制措施,因为采矿必须进行登记 [填空题]高速铁路接触网凡发生供电设备跳闸、接触网异常情况,供电调度员应立即组织( )巡查设备,查明跳闸原因、异常情况
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