It began to rain, ___ was exactly what we wanted.
A.that
B.what
C.which
D.it
答案:C
甲状腺CT扫描时,对于病人呼吸状态的要求应是()
A.不要屏气
B.吸气后屏气
C.呼气后屏气
D.平静呼吸状态下屏气
E.以上状态均可
中枢神经系统症状为()。
A.口唇黏膜呈樱桃红色
B.多汗
C.皮肤潮红
D.发绀
E.共济失调