设命题甲为:0<x<5,命题乙为:(x+1)(x﹣5)<0,那么甲是乙的[ ]
A.充分不必要条件
B.必要不充分条件
C.充要条件
D.既不充分也不必要条件
答案:A
— Excuse me, can you tell me where the nearest bank is, please?
— _____ Oh yes! It's past the post office, next to a big market. [ ]
A. Mm, let me think.
B. Oh, I beg your pardon?
C. You're welcome.
D. What do you mean?
钻井液的结构黏度主要受固体含量的影响,而与剪切速率无关。()