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问题 选择题

下列现象可能是太阳活动造成的是

A．极圈内的极昼极夜

B．南极上空臭氧层空洞

C．无线电短波通讯受到干扰甚至中断

D．大气中二氧化碳增多

答案

答案：C

本题考查太阳活动对地球的影响。太阳活动对地球的影响：引起电离层挠动，影响无线电短波通讯；产生磁暴现象；产生极光现象；对地球气候产生影响，太阳黑子活动周期往往与地球各地年降水量变化周期有相关性。所以本题选择C选项。

问答题 案例分析题

陈×，男，12岁，汉族，未婚，江西宁都人。因发热伴左侧面颊肿痛2天于2005年1月14日入院。

1月12日起无诱因发热，体温38～40℃，明显畏寒、寒战，并有左侧面颊肿痛。

体查：体温38℃，脉搏86次/分，呼吸20次/分，巩膜无黄染，双颌下见数个蚕豆大小淋巴结，质中偏硬，无压痛，界清，移动可。无皮疹、咽充血，扁桃体不大，左侧面颊以耳垂为中心，向前、后、下发展，状如梨形，边缘不清(如图)；局部皮肤紧张，发亮但不发红，触之坚韧有弹性，有轻触痛；言语、咀嚼(尤其进酸性饮食)时刺激唾液分泌，导致疼痛加剧，双肺呼吸音清，腹无压痛，肝肋下未及，脾肋下未及。

血常规：白细胞6.5×109/L，中性粒细胞0.45，淋巴细胞0.55，血色素156g/L，血小板256×109/L。

应进一步作哪些检查明确诊断?
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填空题


Motivation is "the driving force within individuals that impels them to action." And goals are the sought-after results (1) motivated behavior.
Motivation can be either positive or negative (2) direction. We may feel a driving force toward some object or condition, (3) a driving force away from some object or condition. For example, a person may be impelled toward a restaurant to fulfill a need, hunger, and away (4) an airplane to fulfill a need of safety. Some psychologists refer to positive drives (5) needs, wants or desires, (6) negative drives as fears or aversions (7) , though negative and positive motivational forces seem to differ dramatically (8) terms of physical and sometimes emotional activity, they are basically similar in (9) they both serve to initiate and sustain human behavior. (10) this reason, researchers often refer (11) both kinds of drives or motives as needs, wants and desires.
Goals, (12) , can be either positive or negative. A positive goal is one toward (13) behavior is directed and it is often referred to as an approach object. A negative goal is (14) from which behavior is directed away and it is sometimes referred to as an avoidance object. Since both approach and avoidance goals can be considered objectives of motivated behavior, most researchers refer to (15) types simply as goals. Consider this example. A middle-aged woman may wish to remain (16) attractive as possible. Her positive goal is to appear desirable, and (17) she may use a perfume advertised to make her irresistible. A negative goal may be to prevent her skin (18) aging, and therefore she may buy and use face creams. (19) the former case, she uses perfume to help her achieve her positive goal -- attractiveness; in the (20) case, she uses face creams to help avoid a negative goal -- wrinkled skin.
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