目前，政策性银行主要通过（）来解决资金来源问题。
A.吸收公众存款
B.央行贷款
C.中央财政拨款
D.发行债券
参考答案：D
I was just to cut my rose bushes but someone ________ it. Was it you?
A．has done
B．had done
C．would do
D．will do
肠旋转不良的最常见的病理表现，正确的是()
A．空肠近端膜状粘连压迫
B．腹膜索压迫十二指肠
C．肠扭转
D．小肠系膜不附着
E．肠反向旋转
