一般情况下,滚动轴承与轴的配合采用基()制。
A.孔;
B.轴。
参考答案:A
Look, a group of students are playing the violin there, ____their teacher as the conductor.
A.in front of them stand
B.in front of them stands
C.in front of whom standing
D.in front of whom stands
以下关于原发性皮肤淀粉样变的描述,不正确的是()
A.是一种慢性皮肤病
B.可累及肝脏
C.PAS染色阴性
D.瘙痒明显者可口服抗组胺药物