在卢瑟福建立原子有核模型时,他是依靠下列哪种粒子轰击金箔的实验现象?()
A、α粒子
B、β粒子
C、γ射线
D、中微子流
参考答案:A
一年轻女性系统性红斑狼疮患者,全血细胞减少,尿检有轻度蛋白尿、红白细胞、管型,血沉80mm/h,低蛋白血症,低补体。
如果选用强的松的话,其剂量适于:()。
A.<15mg/d
B.<30mg/d
C.30~40mg/d
D.50~60mg/d
E.60~80mg/d
The Customs may "withhold" the goods connected with the smuggling cases. The word "withhold" has the similar meaning of the following words except
A.keep back
B.detain
C.refuse to give
D.refund