【简答题】More than half of teachers in a UK survey said they thought plagiarism from the Internet is a problem. Some students who steal essays wholly from the Web, they said, are so lazy they don’t even bothe...
【单选题】It can be inferred from the 2009 survey that______.
A.
half of college students hold credit cards
B.
students will no longer get credit cards
C.
over 4/5 college students have debt difficulties
D.
tuition is too high for most of the college students
【简答题】在配位滴定中,影响金属EDTA配合物稳定性的主要因素是什么?
【简答题】More than half of rich Americans have not shown their full wealth to their children, a new survey showed last Tuesday. The survey, published by the Bank of America, studied the rich with$3 million or ...
【简答题】阅读教材P56-57,初步了解基因工程,完成下列知识梳理(抄题手写后拍照上传) 一、基因工程的概念 基因工程的概念告诉我们基因工程的主要操作是:______ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __; 基因工程的目的或者结果是 __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __...
【简答题】危重支气管哮喘疾病的临床表现为( )。 查看材料
【单选题】危重支气管哮喘疾病的临床表现为()
A.
步行或上楼时气短,可有焦虑,呼吸频率轻度增加,闻及散在哮鸣音,肺通气功能和血气检查正常
B.
稍事活动感气短,可有焦虑,呼吸频率增加,可有三凹征,闻及响亮、弥漫的哮鸣音,心率增快,可出现奇脉
C.
休息时感气短,端坐呼吸,只能发单字表达,常有焦虑和烦躁,大汗淋漓,呼吸频率>30次/分,常有三凹征,闻及响亮、弥漫的哮鸣音,心率增快常>120次/分,奇脉,PaO<60mmHg,PaCO>45mmHg,SaO≥90%,pH可降低
D.
不能讲话,嗜睡、意识模糊,胸腹矛盾运动等,喘鸣音减低或消失
E.
长时间内仍有不同频度和不同程度的喘息、咳嗽、胸闷等症状