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【单选题】
6 岁患儿,查体发现胸骨左缘 2 、 3 肋间闻及II级收缩期杂音, P2 固定分裂。如果此患儿作右心导管检查,诊断房间隔缺损的可靠依据是 ( )A.
导管从右心房进入左心室
B.
右心房血氧含量增高
C.
右心房压力增高
D.
右心室血氧含量减低
E.
肺动脉压力增高
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皮皮学刷刷变学霸
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【判断题】IP地址202.93.120.45如果是一个标准分类的IP地址,那么它属于C 类地址,该地址的掩码是 255.255.255.0,网络号是202.93.120.0,这个网络的受限广播地址是255.255.255.255 。
A.
正确
B.
错误
【单选题】No sooner had I reached home than Michael arrived with Jane in his car.
A.
did I reach
B.
I had reached
C.
had I reached
D.
I reached
【简答题】Jane arrived (____) in Shanghai last night.
【单选题】——Has Jane arrived yet? ——No, she_______ an hour ago.
A.
was supposed to come
B.
must have come
C.
should come
D.
ought to have come
【简答题】色拉叙马霍斯是()的创始人。
【单选题】---Why hasn’t Jane arrived yet? ---She ______ again in the morning.
A.
shouldn’t have overslept
B.
may have turned off the alarm clock
C.
must have no one to call her
D.
should have someone to wake her up
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