黄体酮注射液
A．油溶液型注射剂B．水溶液型注射剂C．混悬型注射剂D．乳剂型注射剂E．注射用无菌粉末
参考答案：A
若|x-2|+（x+2y）2=0，则（x+y）2012=______．
Mr. Zheng is such a __________ person that he has donated much money to the schools in his hometown.
A．selfish
B．patient
C．humorous
D．generous
