皮皮学,免费搜题
登录
搜题
【简答题】
Why do we cry? Crying makes sense if smoke gets in your eyes or if you’re cutting onions. The tears protect your vision. But what good is emotional crying? Crying often seems to make people feel better when they are sad or upset. A scientist in St. Paul, Minnesota, is investigating the reason for this. Dr. William Frey studied the behavior of a group of people when they cried; 85 percent of the women and 73 percent of the men said they felt better after crying. Frey believes that emotional weeping helps to reduce suffering by ridding the body of harmful chemicals. Such chemicals, he believes, are produced during stress. The chemicals can raise blood pressure, harm digestion, and increase the heartbeat. To test his theory, Frey has been collecting sad tears, drop by drop. He pays men and women to watch sad movies and catch their own tears in a test tube. He has found that about 60 percent of the viewers will cry if the theater is dark and they aren’t crowded close together. During the movies, Frey also records signs of stress, such as fast heartbeat and high blood pressure, to see if crying reduces these.
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】超声雾化吸入法,雾化罐内药液应稀释至
A.
20 ~ 30ml
B.
30 ~ 50ml
C.
50 ~ 60ml
D.
60 ~ 80ml
E.
80 ~ 100ml prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
【单选题】超声雾化吸入法,雾化罐内药液应稀释至
A.
20~30ml
B.
30~50ml
C.
50~60ml
D.
60~80ml
E.
80~100ml
【判断题】无差异曲线的形状取决于商品价格。()
A.
正确
B.
错误
【单选题】2016年12月31日,甲企业“预收账款”总账科目贷方余额为15万元,其明细科目余额如下。“预收账款——乙企业”科目贷方余额为25万元。“预收账款——丙企业”科目借方余额为10万元。不考虑其他因素,甲企业年末资产负债表中“预收款项”项目的期末余额为( )万元。
A.
10
B.
15
C.
5
D.
25
【单选题】2016年12月31日,甲企业“预收账款”总账科目贷方余额为15万元,其中,“预收账款——乙企业”科目贷方余额为25万元,“预收账款——丙企业”科目借方余额为10万元。不考虑其他因素,甲企业年末资产负债表中“预收款项”项目的期末余额为( )万元。
A.
10
B.
15
C.
5
D.
25
【单选题】航空等级货物运价是在普通货物运价的基础上附加一定的百分比的形式构成。( )
A.
正确
B.
错误
【简答题】水准测量的方法有哪些
【简答题】2BMJ-12型精量铺膜播种机常见故障中空穴 故障产生的原因有哪些?
【单选题】超声雾化吸入法,雾化罐内药液应稀释至()
A.
10~20ml
B.
20~30ml
C.
30~50ml
D.
50~80ml
E.
80~100ml
【简答题】数据库服务主要包括( )。 A)关系数据库系统 B)非结构化数据库系统 C)专业专用管理信息系统 D)以上所有
相关题目: