(86~88题共用备选答案)
致病菌侵入血液并繁殖,产生内、外毒素,引起全身症状( )
A.菌血症B.毒血症C.败血症D.病毒血症E.脓毒败血症
参考答案:C
Can you see two butterflies in the middle of the flowers?
A.are there, fly
B.there are, flying
C.there are, fly
D.are there, flies
要对VHF2的频率进行选择,可以通过()实现.
A.RMP1
B.RMP2
C.RMP3
D.以上都可以