轻钢龙骨纸面石膏板隔墙纸面石膏板必须横向安装。
参考答案:错
We don’t need a lot of friends _____ they are good.
A.as many as
B.as much as
C.as long as
D.as more as
荚膜的医学意义有()
A.与鉴别细菌有关
B.与细菌致病性有关
C.与消毒灭菌有关
D.与分裂繁殖有关
E.与抗原性有关