[单选题]急进树冠火蔓延速度一般为（）公里/小时。(　　)-我要搜题网

[单项选择]FACTORS THAT INFLUENCE BUYING BEHAVIOR
Throughout the buying process, various factors may’ influence a buyer’s purchase decision. An awareness of these factors and consumer preferences enables companies to appeal to the group most likely to respond to its products and services. Some of these factors include the following.
CULTURE. The culture and subcultures we belong to shape our values, attitudes, and beliefs, and they influence the way we respond to tike world around us. Understanding culture is therefore an increasingly important step in international business and in marketing in diverse countries such as the United States.
SOCIAL CLASS. In addition to being members of a particular culture, we also belong to a certain social class — upper, middle, lower, m’ somewhere in between. In general, members of various classes enjoy different activities, buy different goods, shop in different places, and react to different media.
REFERENCE GROUP. A reference group
A. Its members know each other very well.
B. Members of the group influence each other.
C. All members like the same thin

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[单项选择]NASA launched the first space mission to Pluto yesterday as a powerful rocket hurled the New Horizons spacecraft on a nine-year, three-billion-mile journey to the edge of the solar system
As it soared toward a 2007 meeting with Jupiter, whose powerful gravitational field will shoot it on its way to Pluto. mission managers said radio communications confirmed that the 1,054-pound craft was in good health.
The $700 million mission began when a Lockheed Martin Atlas 5 rocket rose from a launching pad at the Cape Canaveral Air Force Station in Florida at 2 p.m., almost an hour later than planned because of low clouds that obscured a clear view of the flight path by tracking cameras.
Less than an hour later, all three stages of the booster rocket worked as planned, and the spacecraft separated from them and sprinted away toward deep space. The robot ship sped away at about 36,000 miles per hour, the fastest flight of any spacecraft sent from Earth. allowing it to pass the Moon
A. It began the exploration of the planets.
B. Ms. Clyde was aboard the spacecraft to memorize Mr. Clyede.
C. It will reach Pluto in eight years.
D. It broke the rate record of spacecrafts.

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[单项选择]以下药物归经正确的是（）
A. 黄芩归肺、胆、脾、胃、大肠、小肠经
B. 黄连归心、脾、胃、胆、大肠、小肠经
C. 黄柏归肾、膀胱、大肠经
D. 龙胆草归肝、胆经
E. 苦参归心、肝、胃、大肠、膀胱经

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[判断题]用电设备的功率因数对线损无影响。
A.正确
B.错误

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[单项选择]气管异物的X线征象正确的是（）
A. 透视可见横膈位置升高
B. 透视可见吸气时心影缩小
C. 透视可见吸气时纵隔向健侧移动
D. 双肺透亮度增高
E. 心影正常大小

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[多选题]以下药物易在肠道中吸收的是
A.奎宁
B.麻黄碱
C.水杨酸
D.苯巴比妥
E.地西泮

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[单项选择]为使测绘仪器防霉，作业中暂停使用的测绘生产仪器每周至少通电______，同时使各个功能正常运转。
A. 0.5h
B. 1h
C. 1.5h
D. 2h

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[单选题]变压器的功能是()。(　　)
A.生产电能
B.消耗电能
C.生产又消耗电能
D.传递功率

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[单选题]目对一般类型的摄像机,可首先检查其外观是否正常,看有无可疑部件及有无拆卸过的痕.迹,..重点检查..()
A.带匣.、..电池盒..(外置电源)、..取景窗
B.镜头.、..镜头盖
C.机身.、..底座
D.卡带

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[单选题]《民用航空空中交通通信导航监视设备使用许可管理办法》第十三条规定，设备使用许可证申请过程中，现场测试合格的设备进行试运行，试运行期视复杂程度为（）。
A.3到12个月
B.4到12个月
C.3到6个月
D.6到12个月

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[单选题]根据劳动法的有关规定，( )，劳动者可以随时通知用人单位解除劳动合同。
A.在试用期间被证明不符合录用条件的
B.严重违反劳动纪律或用人单位规章制度的
C.严重失职、营私舞弊，对用人单位利益造成重大损害的
D.用人单位未按照劳动合同约定支付劳动报酬或者是提供劳动条件的

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[多选题]下列关于信用卡和借记卡的区别的说法,不正确的是( )。(0分)
A.借记卡不进行资信审查,使用前需存款,信用卡视各发卡银行规定,需进行必要的资信审查,对符合申请条件的方予发卡
B.借记卡存多少,用多少,不能透支,而信用卡无须存款,先消费,后还款
C.借记卡无免息还款期,而信用卡有
D.借记卡无预借现金,而信用卡有
E.借记卡有利息,信用卡无利息

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[单选题]单选题
下列粉尘中()的粉尘不可能发生爆炸。
A. 生石灰
B. 面粉
C. 煤粉

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[判断题]促进个体发展从潜在的可能状态转向现实状态的决定性因素是教育。

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[单选题]通信电源直流供电系统包括（）等部分。 A.整流设备
A.逆变器
B.直流配电屏
C.蓄电池
D.直流变换器（DC/D
E.

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[判断题]定子绕组泄漏电流随电压不成比例显著增长时，应注意分析（）

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[判断题]电力电缆停电检修时，必须将需检修的电缆两端可靠接地。可在需检修的电缆两端任一变配电所办理作业手续。
A.正确
B.错误

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[多项选择]专业技术人员从事工作的性质，使得他们在工作中一般具有下列特点（）
A. 工作压力小
B. 较强的自主意识
C. 独立的价值观
D. 较强的流动意愿