【单选题】患者女,55岁,腹痛3天,伴恶心、呕吐,不排便。查体:左侧卵圆窝突起半球形包块,腹部透视见腹部胀气,阶梯状多个液平面。诊断应考虑
【单选题】腹股沟疝修补术,切口感染化脓,下列描述正确
【单选题】女,55岁。腹痛3天,恶心呕吐,不排便。查体:肥胖,右侧腹股沟区较左侧饱满伴压痛。腹部透视见腹部胀气有数个液平段。诊断应首先考虑
【单选题】旅游业是一个凭借( )来招徕和接待游客的行业。
【单选题】Single—parent Families Today we tell about the major change in the American family.It is the increase in the number of families with only one parent. _______(1).One of the reasons for this is the incr...
A.
About 22 percent of American children now live with only one parent.
B.
Experts have tried to explain the reasons for the increase.
C.
The report included women between the ages of 18 and 44 who have never been married.
D.
Experts say this is not true today.
E.
A woman’s family expected her to be married,so did religious groups,customs and laws.
F.
There has been much debate in the United States about the single—parent family. 第 46 题 请选择(46)处的最佳答案.
【多选题】旅游业是一个凭借( )来招徕和接待游客的行业。
【简答题】What are the major legal families in the world?
【单选题】Single—parent Families Today we tell about the major change in the American family.It is the increase in the number of families with only one parent. ____(1).One of the reasons for this is the increas...
A.
About 22 percent of American children now live with only one parent.
B.
Experts have tried to explain the reasons for the increase.
C.
The report.included women between the ages of l8 and 44 who have never been married.
D.
Experts say this is not true today.
E.
A woman’s family expected her to be married,so did religious groups,CUstoms and laws.
F.
There has been much debate in the United States about the single—parent family。 根据以上材料回答下面问题: 第 61 题 ____(1).One of the reasons for this is the increasing number of women who have children without being married.
【简答题】设f(x)在区间I上连续,并且在I上仅有唯一的极值点x0。证明:若x0是f(x)的极大(小)值点,则x0必是f(x)在I上的最大(小)值点。
【单选题】一个有向图D由顶点集V和边集E构成。如果D有n个顶点,那么顶点集为【图片】,如果在D中从【图片】到【图片】有一条有向边,那么【图片】属于E。有向图D可以用一个n行n列的0-1矩阵M来表示。如果D中的【图片】到【图片】有一条有向边,那么矩阵M的第i行第j列元素的值为1;否则【图片】。图的连通性是指从图的某些顶点到其他顶点存在一条由连续有向边构成的路径。一个著名的检查图的连通性的算法就是Warshal...
A.
a 可以连通到 b,c,d;b 可以连通到 c,d;c 可以连通到 d;d 可以连通到 c
B.
a 可以连通到 b,c,d;b 可以连通到 c;c 可以连通到 d;d 可以连通到 c
C.
a 可以连通到 b,c;b 可以连通到 c,d;c 可以连通到 d;d 可以连通到 c
D.
a 可以连通到 b,c,d;b 可以连通到 c,d;c 可以连通到 b,d;d 可以连通到 c