下面语段中画线的成语,使用不恰当的一项是 ( ) 我国目前有1600万教育工作者,他们长期以来兢兢业业,默默耕耘,甘为人梯,培养
The professor advised us to think outside the box and to________ new, different, or unusual solutions. A.put up with B.come up with C.keep up with D.catch
子在川上曰:“逝者如斯夫,不舍昼夜”。这句话蕴含的哲理是 A.运动是无条件的、绝对的 B.世界万物是永恒
---Do you know if Jim______ to play basketball with us? ---I think he will come if he ______ free tomorrow. A.comes; is B.comes; will be C. will come; is D.will come; will be
假设某生物体细胞内有A与a、B与b两对同源染色体,在正常情况下,卵细胞中的染色体组合不会有( ) A.AB B.aB C. Aa D.ab
13C-NMR(核磁共振)可用于含碳化合物的结构分析14N-NMR可用于测定蛋白质、核酸等生物大分子的空间结构,下面有关13C、15N叙述正确的是( ) A.13C
Two and ________ is seven.A. eight B. four. C. six. D. five.