Everyone arrived on time the traffic was so terrible. A, if B. unless C. though D. because
如图16-14所示,MN为裸金属杆,在重力的作用下,贴着竖直平面内的光滑金属长直导轨下滑,导轨的间距L=10 cm,导轨的上端接有R=0.5 Ω的电阻,导轨和金属
在0,-1,2,-3这四个数中,绝对值最小的数是( ) A. 0 B. C. 2 D.
It seems that the aged people ________ the H7N9 more easily from the recent cases. A.pick up B. mix up C. set up
在某一温度下,连接在电路中的两段导体A和B中的电流与其两端电压的关系如图9所示。由图中信息可知( )A.A导体的电阻为10ΩB.B导体的电阻为10ΩC
3.下列句子中,加点词语使用恰当的一项是( ) A.草原的清晨,别有情趣,你站在高岗,极目远眺,烟雾朦胧,茫茫无际,晓风残月,清爽无
完形填空 Tom and Fred were talking about the year 2050. “What will __1__ be like in the year 2050?” asked Tom. “I don’t know,” said Fred. “What do you thin