下列非洲的矿产中储量和产量都居世界首位的是[ ]
A．煤、铁
B．石油、铀
C．铁、锰
D．金刚石、黄金
答案：D
Simon, you _______ do your homework today. Leave it for tomorrow. [ ]
A. needn't to
B. not need to
C. don't need
D. don't need to
中华人民共和国 * * 习 * * 家乡在哪里？
