【单选题】Julie watched the ants as they carried small crumbs down the trail to the anthill. She thinks ants are very hard working and industrious little creatures. They always seemed busy, and you never saw an...
A.
Ants carry many things.
B.
Some ants may bite you.
C.
Ants are hard workers.
D.
Some ants help take care of the queen.
【单选题】下列化合物中最不容易发生傅克反应( Friedel-Crafts )的是
【单选题】(P139)除了生产力与生产关系的矛盾,另一对社会基本矛盾是
【单选题】As a master's candidate, he was always diligent in his study and research.
【单选题】As a result of sophisticated technologies, this device has several advantages over like products.
【判断题】敦煌石窟开凿在玉门系砂岩崖壁上,岩层是由砾石和细沙沉淀粘结而成,不适宜雕刻,所以从初始就采取了彩绘泥塑的方法。
【单选题】盆式橡胶支座在竖向设计荷载作用下,荷载试验的检验荷载取支座设计承载力的( )倍。