【单选题】以下关于将文化用来营销的说法正确的是:
B.
文化的信息、影视、戏剧等不能作为构建形象的材料
【单选题】在实验中,以下哪种做法是错误的?
A.
一旦浓硫酸落在人体身上时,用 4.5% 乙酸或 1.5% 左右的盐酸中和洗涤
B.
一旦浓硫酸落在人体身上时,以弱碱( 2% 碳酸钠)或肥皂液中和洗涤
C.
一旦碱液落在皮肤上时,用 4.5% 乙酸或 1.5% 左右的盐酸中和洗涤
【多选题】利用应力圆分析二向应力状态时,下列说正确的是:
A.
圆上一点的纵坐标代表单元体相应斜截面的正应力
B.
圆上一点的横坐标分别代表单元体相应斜截面的正应力
【单选题】According to the text, what is NOT correct about copyright protection?
A.
A copyright is the exclusive legal right.
B.
Copyright law protects music, art, drawings, movies and computer software.
C.
Copyright law prohibits copying of intellectual property without the permission of the copyright holder.
D.
As a copyright holder, you must register your idea with the government to get protection.
【判断题】As a freelance writer, the person own the copyright to his/her work under any circumstance.
【单选题】某慢性阻塞性肺疾病患者,在用力排便后出现极度呼吸困难,发绀,出冷汗。检查: Bp65 / 40mmHg ,右胸饱满,气管移向左侧,右侧叩诊鼓音。考虑出现了什么情况