问题
选择题
下列几组物体中,常温下都是导体的是[ ]
A.人体,铅笔芯,干木材
B.盐水,铜,陶瓷
C.塑料,铁,钢
D.银,石墨,大地
答案
答案:D
下列几组物体中,常温下都是导体的是[ ]
A.人体,铅笔芯,干木材
B.盐水,铜,陶瓷
C.塑料,铁,钢
D.银,石墨,大地
答案:D
A. Three. B. Four. C. Five. 小题2: What dessert would you like best? A. Sandwich with egg. B. Coffee. C. Chocolate. 小题3: How much is the rice with chicken and a glass of orange juice? A. $6.50. B. $4.80. C. $7.50. |