3岁小儿患先天性心脏病,X线检查示右房室增大,左心室及主动脉缩小,肺多血。提示为()
A.房间隔缺损
B.室间隔缺损
C.肺动脉狭窄
D.动脉导管末闲
E.法洛四联症
参考答案:A
-Have you_______ the film "Black coal, Thin ice" ?
-Of course. It won the Best Film Award in the 65th Berlin Film Festival. I don't mind _______ it again if you invite me to.
A.heard from; to see
B.heard about; saw
C.heard of; seeing
D.heard; see
为美国优越的地理环境提供的良好条件。其中不正确的是 [ ]
A.国土全部位于北温带
B.土地资源丰富
C.矿产资源种类多、储量大
D.三面临海,沿海多良港