巴西储量大、质地优、产量、出口量都居世界前列的矿产是
A 铜矿 B 煤矿 C 钨矿 D 铁矿
答案：D
本题考查世界地理。巴西主要出口的矿产资源为铁矿。
A．蓝墨水滴在水中会慢慢散开，说明分子间有斥力
B．用鼻子嗅气味能辨别出醋和酱油，表明分子在运动
C．固体之所以比液体更难压缩，是因为固体分子比液体分子大
D．宇宙是一个有层次的天体结构系统，恒星是其中绝对不动的天体
How did they get there
A．They started to look for the subway station.
B．They Would rather drive than go by subway.
C．They went by subway because the car wasn’t working.
D．They drove so they wouldn’t have to go by subway.
