【判断题】辆电动车标价 1200元。这里1200无表明货币在执行流通手段职能。
【单选题】Cr(H 2 O)(en)(C 2 O 4 )OH〕的正确命名是()
【单选题】反跳痛,肠鸣音亢进,白细胞计数1.8×109/L个。适宜的处理
【单选题】女性,60岁,腹痛呕吐及肛门停止排便排气3天,急性病容,腹部饱满,可见肠型,肌紧张,全腹性压痛、反跳痛,肠鸣音亢进,白细胞计数18×10/L。适宜的处理是( )
【单选题】女性 , 50 岁 , 腹痛呕吐及肛门停止排便排气 3 天 , 急性病容 , 腹部饱满 , 可见肠型 , 肌紧张 , 全腹性压痛、反跳痛 , 肠鸣音亢进 , 白细胞计数 1.8× 10 个。适宜的处理是()
【单选题】It is enough to say that since books have classes: fiction, biography, poetry—we should separate them and take from each what it is right that each should give us. Yet few people ask from books...
A.
lots of people read few books
B.
readers have only absorbed part of knowledge in books
C.
few people have a proper idea about what content some kind of books should include
D.
readers can scarcely understand most of the books
【单选题】反应2H 2 CrO 4 +3H 2 O 2 =2Cr(OH) 3 +3O 2 ↑+2H 2 O,下列说法正确的是( )
A.
H 2 CrO 4 是氧化剂,H 2 O是氧化产物
B.
若3mol H 2 O 2 完全反应,则反应转移了6N A 个电子
C.
还原剂与氧化剂的质量比是1:2[M(H 2 CrO 4 )=118,M(H 2 O 2 )=34]