病原菌侵入血流并在其中大量繁殖。造成机体严重损伤,引起严重的症状称为()
A.毒血症
B.菌血症
C.败血症
D.脓毒血症
E.病毒血症
参考答案:C
Because of the financial crisis this year, the company decided not to _______ dividends (股息) to its shareholders.
A.vary
B.distribute
C.disturb
D.contribute
折角塞门与截断塞门有何不同?