在下列各数：﹣（﹣2），﹣（﹣22），﹣|﹣2|，（﹣2）2，﹣（﹣2）2中，负数的个数为[ ]
A．1个
B．2个
C．3个
D．4个
答案：B
被称为“地球之肺”的是[ ]
A、加拿大的亚寒带针叶林
B、南美洲的热带雨林
C、俄罗斯的亚寒带针叶林
D、非洲的热带草原
It is greatly ________ that he gave back the money he found on the bus.
A．for his delight
B．to his delight
C．to his credit
D．in his credit
