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>> 河南成教 / 常微分方程
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佳题速递：
铸造是将金属熔炼成符合一定要求的的液体并浇进铸型里，经冷却凝固、清整处理后得到有预定形状、尺寸和性能的铸件（零件或毛坏）的工艺过程。√
×特种铸造 [简答题] 力性运动，运动时间长，其代谢特点体育保健学 关于卵巢肿瘤下列说法错误的是 妇产科学 工业洗衣机甩干时转速快，洗涤时转速慢，烘干时转速更慢，故需要变频器的（ ）功能转矩补偿频率偏置段速控制电压自动控制交流变频调速应用技术 在计算机硬件技术指标中，度量存储器空间大小的基本单位是( ) 高级办公自动化 2[填空题]
Ancient Greek philosopher Aristotle viewed laughter as “a bodily exercise precious to health.” But __1___some claims to the contrary, laughing probably has little influence on physical fitness Laughter does __2___short-term changes in the function of the heart and its blood vessels, ___3_ heart rate and oxygen consumption But because hard laughter is difficult to __4__, a good laugh is unlikely to have __5___ benefits the way, say, walking or jogging does.
__6__, instead of straining muscles to build them, as exercise does, laughter apparently accomplishes the __7__, studies dating back to the 1930’s indicate that laughter__8___ muscles, decreasing muscle tone for up to 45 minutes after the laugh dies down.
Such bodily reaction might conceivably help _9__the effects of psychological stress. Anyway, the act of laughing probably does produce other types of ___10___ feedback, that improve an individual’s emotional state. __11____one classical theory of emotion, our feelings are partially rooted ____12___ physical reactions. It was argued at the end of the 19th century that humans do not cry ___13___they are sad but they become sad when the tears begin to flow.
Although sadness also ____14___ tears, evidence suggests that emotions can flow __15___ muscular responses. In an experiment published in 1988,social psychologist Fritz Strack of the University of würzburg in Germany asked volunteers to pick a pen either with their teeth-thereby creating an artificial smile – or with their lips, which would produce a(n) disappointed expression. Those forced to exercise their smiling muscles reacted more exuberantly to funny cartons than did those whose mouths were contracted in a frown, mentioning that expressions may influence emotions rather than just the other way around Similarly , the physical act of laughter could improve mood.
1．[A]among [B]except [C]despite [D]like
2．[A]reflect [B]demand [C]indicate [D]produce
3．[A]stabilizing [B]boosting [C]impairing [D]determining
4．[A]transmit [B]sustain [C]evaluate [D]observe
5．[A]measurable [B]manageable [C]affordable [D]renewable
6．[A]In turn [B]In fact [C]In addition [D]In brief
7．[A]opposite [B]impossible [C]average [D]expected
8．[A]hardens [B]weakens [C]tightens [D]relaxes
9．[A]aggravate [B]generate [C]moderate [D]enhance
10．[A]physical [B]mental [C]subconscious [D]internal
11．[A]Except for [B]According to [C]Due to [D]As for
12．[A]with [B]on [C]in [D]at
13．[A]unless [B]until [C]if [D]because
14．[A]exhausts [B]follows [C]precedes [D]suppresses
15．[A]into [B]from [C]towards [D]beyond大学英语.
