圆管内液流处于层流流态时,当流体流速增加时,沿程摩阻系数()。
A、不变
B、基本不变
C、将变大
D、将变小
参考答案:D
改良电痉挛治疗通常用的麻醉药物是()
A.乙醚
B.硫苯妥钠
C.氯胺酮
D.利多卡因
E.丙泊酚
Explain the seller’s obligations in respect of requirements as to the quality of goods supplied, under Article 35 of the UN Convention on Contracts for the International Sale of Goods. (10 marks)