我国领土南北跨纬度很广，大部分地区属于[ ]
A．热带
B．亚热带
C．北寒带
D．北温带
答案：D
The driver was very happy that his car ______ very well in this car-washing centre.
A．cleans
B．cleaned
C．was cleaned
D．is cleaned
人吃下去的磷元素要经过1个月才能够完全排出体外。
