2003年,我国城市居民恩格尔系数为37.1%,农村居民恩格尔系数为45.6%。以上

题型:单项选择题

问题:

2003年,我国城市居民恩格尔系数为37.1%,农村居民恩格尔系数为45.6%。以上数据说明()

①我国城乡居民收入比较高

②我国农村居民收入比较低

③我国城市居民收入比较高

④我国城乡居民收入差距较大

A.①②③

B.②③④

C.①②④

D.①②③④

考点:高中政治思想品德消费消费题库
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发病率可以表示为()

A.(观察期内的病例数÷同期平均人口数)×100%

B.(观察期内的新病例数÷同期暴露人口数)×100%

C.(一年内的新病例数÷同年暴露人口数)×100%

D.(观察期内的新病例数÷同期平均人口数)×100%

E.(观察期内的新旧病例数÷同期暴露人口数)×100%

题型:单项选择题

     Most international students are between the ages of 16 and 20 or even o  1  . These are the r  2   

ages for young people to look after themselves. International students will f  3  two problems:

independence (独立) and study.

      Firstly, It's very important for international students to have independence. If they always ask for

help from their p 4   , They will be a 5   most of the time when they study aboard.

      Secondly, international students study h  6   than they do at home. They not only study more

d 7   subjects but also have to study a f  8   language to understand their teachers and the b 9   which

they use.

      So it's not e 10  to study abroad. They must overcome (克服) the two problems if they study

aboard.

题型:单项选择题

军团菌是指()

A.革兰阳性球菌

B.革兰阴性球菌

C.革兰阳性杆菌

D.革兰阴性杆菌

E.抗酸阳性杆菌

题型:单项选择题

下列脑膜瘤CT影像不对的是()。

A.常有明显脑水肿

B.无包膜

C.平扫,与脑组织密度相等或略高

D.脑白质塌陷征

E.邻近颅骨增厚

题型:单项选择题

下列那一个指令可以删除空目录?()

A.rmdir

B.more

C.cp

D.cls

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