早期慢性肺心病的诊断依据是
A．慢性支气管疾病史
B．双肺干湿性啰音
C．喘息
D．肺动脉高压及右心室增大征象
E．肺型P波
参考答案：D
五四运动时期，天津一公园中的亭柱上，贴有如下一副对联：“振民气合民力万众一心；御国敌除国贼匹夫有责。”对联中的“国敌”是指[ ]
A．英国
B．德国
C．美国
D．日本
His mind went so blank that little________ down for the first ten minutes in the test.
A．he wrote
B．he was written
C．did he write
D．was he written
