右手平伸,大拇指指向导体运动方向,四指指向感应电动势方向,则手心迎向( )。
A.受力方向
B.电流方向
C.电压方向
D.磁感应强度方向
参考答案:D
著名哲学家得谟克利特说过“不敢同冠军较量,就永远争不到冠军”,下面对这句话的理解和认识,正确的是[ ]
A、在竞争中,要敢于同对手进行较量
B、只有敢于同对手较量,才能从中获得经验和教训,最终而取得胜利
C、只要同冠军较量,就能获得冠军
D、通过竞争,才能激发学习热情,实现自我超越
Part 4
Questions 26-45
iPhone Left in Hot Car for Three Hours
A. occasionB. scene C. rescue D. field
According to official police records, two officers forcibly (36) into the car at 4:07 p.m. and found the iPhone (37) face down on the dashboard. The iPhone at first showed no (38) of life, but after a tense few seconds, officers were able to wake it and get it to (39) to a series of simple touch commands. Police said that if the iPhone were left in the extreme (40) for any longer, it could have died.The iPhone was rushed by ambulance to a nearby Apple facility for careful (41) .Miraculously, no damage to its memory, screen, or wireless capabilities was reported.Upper-middle-class suburbanites from all over the North Shore area have reacted to the near-tragedy with an unprecedented outpouring of (42) . Hundreds of cards and letters have come streaming in, and local talk radio shows have been flooded (43) calls demanding that the iPhone’s (44) be prosecuted. Many have come forward offering to take the iPhone into their custody, and still (45) have donated free downloads, ringtones, and MP3s to the victimized object.