【单选题】Who is the last one to quit an organization according to the social network.
A.
the one without any friend
B.
the one with many friends
【单选题】利用EGR系统,可减小汽车( ) 的排放
【单选题】利用EGR系统可以减小汽车( )的排放。
【简答题】Who is the last one to unplug in Tiffany’s family? (Para. 1) The last one is _______________________.
【单选题】各种抗生素有其不同的制菌范围,又称抗菌谱。下列关于各种的抗菌谱叙述不正确的是
C.
氯霉素、四环素、金霉素和土霉素等因能同时抗G+、G-细菌以及立克次氏体、衣原体和病毒,故称广谱抗生素。