新种
参考答案：最新权威性的分类、鉴定手册中从未记载过的一种新分离并鉴定过的微生物。
Did you watch _______ 7 o’clock news this evening? _______ plane with 227 passengers had gone missing.
A．/; The
B．the; A
C．the; /
D．/; A
什么是正压封管
