熔点在90~230℃的物体,熔点洛采用水为载热体。()
参考答案:错
引起中心静脉压升高的因素有()
A.由直立位改为平卧位
B.骨骼肌的活动减少
C.容量血管收缩
D.输血或输液过多、过快
E.右心室射血功能减弱
Which of the following statements is NOT true of "fractional ownership" a. "Fractional ownership" allows people share the use of highly expensive commodities. b. Thanks to "fractional ownership", people can afford luxuries like a super yacht. c. "Fractional ownership" is identical to "time sharing". d. "Fractional ownership" means part of the property right to the buyer.