世界上物种最丰富的地区是
A．热带地区
B．温带地区
C．季风区
D．寒暖流交汇区
答案：A
本题考查生物。热带雨林地区是世界物种最丰富地区。
— Would you mind my coming over and having a look at your new garden?
— ______. You're welcome. [ ]
A. Not at all
B. Never mind
C. Yes. Please
D. Yes. I do
灼热丝是用直径为（）的镍/铬丝制成的。
