两个完全相同的梯形一定可以拼成一个( )形,这个图形的底等于( )。每个梯形的面积等于拼成图形面积的( )。
平行四边;梯形的上下底之和;
女性,35岁,35分钟前自汽车上跌下,左枕部着地,伤后昏迷不醒,枕部头皮挫伤,双瞳孔散大,对光反射弱,四肢强直,双下肢病理征阳性。在急诊室输20%甘露醇250ml后,左瞳孔缩小。进一步急救措施是()。
A.左侧颞肌下减压
B.右侧颞肌下减压
C.枕部开颅减压术
D.右额开颅血肿清除
E.左额开颅血肿清除
According to a recent cross-cultural study, married people in general have longer life expectancies than do people who divorce and do not remarry. This fact indicates that the stress associated with divorce adversely affects health. Which of the following, if true, points to a weakness in the argument above
A.Overall life expectancies differ among countries, even among countries with similar cultures.
B.People often show signs of stress when undergoing a divorce.
C.Life expectancy varies with age-group, even among married people.
D.Stress of many kinds has been shown to affect health adversely.
E.(E) Adults who have never married have shorter life expectancies than do married people of the same age.