题目:
高压开关柜前后间隔没有可靠隔离的,工作时应()。
A.同时停电
B.加强监护
C.装设围栏
答案:
参考答案:A
高压开关柜前后间隔没有可靠隔离的,工作时应()。
A.同时停电
B.加强监护
C.装设围栏
参考答案:A
已知a﹣b=﹣1,ab=3,求a3b﹣2a2b2+ab3的值.
()产品是为国内供货企业的备料、生产和装运等履约活动提供短期融资。
A.卖方押汇
B.买方押汇
C.国内信用证下打包贷款
D.出口押汇
Do you still remember your dreams from childhood? They’re like flowers that never fade, “23-year-old Liu Wei told a happy audience during a broadcast of the nationwide talent competition China’s Got Talent. Liu, an ___16____ pianist from Beijing, was named one of the show’s finalists. Liu once had arms. At the age of 10 he accidentally grabbed a high-voltage wire and lost his arms. “My family and I were so ___17____ then,” Liu recalled. He credits a disable boy he met at the hospital who gives him the __18_____ to cheer him up. He was forced to __19_____ playing soccer (his favorite sport) but bounced back and ___20____himself to learn swimming. After two years, Liu had won two gold medals and one silver at the National Swimming Championship for the disabled in 2002. By the age of 19, Liu had taught himself __21_____ to play the piano with his feet, fulfilling a childhood ___22____ of composing and producing music, he said ___23____ a big smile. “__24_____ enough time, I could be just as same as anyone.” “I can read music and have __25_____ the ‘toeing’ by myself,” he told. According to Liu, the big toe is the most __26_____ digit when “toeing,” but that he can only reach five keys at the same time. “It means I have to train my toes to move more ___27____,” he said. One of the show’s hosts, Cao Kefan, told press. “He was __28_____ so hard his feet were constantly cramping,” Cao said. “ We’ve all __29_____ our dreams when we were young, but no one has fought as hard as you,” commented Gao Xiaosong. Gao is one of the show’s judges and one of most ___30____ music producers in China. “You tell us that to __31_____ our dream, we need to spare no pains,” said Yi Nengjing, a show judge and Taiwanese pop star. “I’ve received a lot of letters of support, all ___32____ me to focus on my music,” Liu said. When asked what he would do when the show was ___33____, he revealed several music companies had asked to __34_____ him. But whatever happened, he added he is sure he would keep __35_____ his dream. “Music is like water and air to me,” he said. “I can’t live with out it.”
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先将可溶性抗体和相应的抗原混合,再加入致敏的红细胞的是()
A.协同凝集试验
B.正向间接血凝试验
C.反向间接血凝试验
D.正向间接血凝抑制试验
E.反向间接血凝抑制试验
红花的显微特征为( )
A.单细胞及多细胞非腺毛、油细胞众多
B.表皮有不定式气孔
C.腺毛头部1~5个细胞、柄1~5个细胞
D.有两种腺毛:头部倒圆锥形及头部倒三角形,均为多细胞,腺柄亦为多细胞
E.有管道状分泌细胞