59Fe-柠檬酸盐进行骨髓显像时的常用剂量为()
A.3.7MBq
B.37MBq
C.37~148MBq
D.370~740MBq
E.740MBq
参考答案:E
在装有20枚5角硬币和50枚1角硬币的存钱罐内,随手摸出一枚( )硬币的可 能性较大。
— You look _______. Can you tell me why you are so happy?
— Sure. There will be anther _______ relay race in the afternoon. [ ]
A. excite; exciting
B. excited; exciting
C. exciting; excited
D. excited; excite