两性霉素B的作用机制是()。
A.破坏真菌细胞壁
B.增加真菌胞浆膜的通透性
C.抑制蛋白质合成
D.抑制核酸代谢
E.抑制叶酸代谢
参考答案:B
Everybody likes to get along with someone who is generous _____ his money and dislikes ____with
someone who is mean with it. [ ]
A. with; to get along
B. for; getting
C. with; getting
D. to; to get along
当强行下管柱时,为了保持可承受的井底压力,应当采取以下哪种方法?()(假定没有溢流运移)
A.每隔一定时间,放出相当于管柱排体量的井液。
B.每隔一定时间,放出相当于下入井内的管柱排替量的井液。
C.每隔一定时间,向井内泵入相当于下入井内的管柱排替量的井液。
D.每隔一定时间,向井内泵入等于管柱排替量的井液。