下列哪些因素可使脑血流增加()
A.PaCO2升高
B.低氧血症
C.PaCO2下降
D.血液粘度增加
E.交感神经兴奋
参考答案:A, B
Let Tom _____ right away. [ ]
A. go home
B. to go home
C. goes home
D. goes to home
Where would you find information about the time of high tide at a specific location on a particular day of the year?()
A.Tide Tables
B.Tidal Current Tables
C.Coast Pilot
D.Nautical Almanac