强心苷对下列哪种心衰疗效最差()
A.高血压病所致的心衰
B.肺源性心脏病所致的心衰
C.缩窄性心包炎所致的心衰
D.先天性心脏病所致的心衰
E.贫血所致的心衰
参考答案:C
---David has made great progress recently.
--- _____, and _____.
A.So he has; so you have
B.So he has; so have you
C.So has he; so have you
D.So has he;so you have
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