外科中常见的两种休克是（）

A.低血容量性休克

B.感染性休克

C.心源性休克

D.神经源性休克

E.损伤性休克

Which of the following best completes the passage below "Government" does not exist as an independent entity defining policy. Instead there exists a group of democratically elected pragmatists sensitive to the electorate, who establish policies that will result in their own reelection. Therefore, if public policy is hostile to, say, environmental concerns, it is not because of governmental perversity but because elected officials believe that

A．environmentalists would be extremely difficult to satisfy with any policy, however environmentally round.

B．environmental concerns are being accommodated as well as public funds permit.

C．the public is overly anxious about environmental deterioration.

D．the majority of voters vote for certain politicians because of those politicians’ idiosyncratic positions on policy issues.

E．(E) the majority of voters do not ply wish for a different policy.