皮带接头裁剥表面不得破裂,刀对下一层帆布误割深度不得超过()。
A、1/2;
B、1/3;
C、1/4;
D、3/4。
参考答案:A
With so many people _____ by send e-mails every day, it will become more and more important to have _____
knowledge of computer. [ ]
A. communicating; a good
B. communicated; good
C. communicating; good
D. communicated; a good
“夜市喧至三更尽,才五更又复开张。如耍闹去处,通晓不绝”,“天街买卖,直至五鼓,玩月游人,婆娑于市,至晓不绝”,“茶坊每五更点灯,博易买卖衣物、图画、花环、领抹之类,至晓即散,谓之鬼市子”。材料中描绘的这种经济现象出现在( )
A.西汉
B.隋唐
C.北宋
D.元朝