目前，我国房地产抵押贷款的资金来源全部是商业银行。（）
参考答案：对
—Is this the Greens' house?
—No. _______ is over there, next to the post office. [ ]
A. Theirs
B. Their
C. His
D. Hers
不管温度如何变化，t分钟内的灭菌效果与121℃下灭菌效果相当的是
A．F
B．Fo
C．D
D．Z
E．T
