再生障碍性贫血与下列哪种疾病最难加以鉴别()
A.阵发性睡眠性血红蛋白尿症
B.缺铁性贫血
C.巨幼细胞性贫血
D.急性白血病
E.多发性骨髓瘤
参考答案:A
根据例子写句子。
例: cows 15 → How many cows are there? Fifteen.
1. sheep 90 → ___________________________________________
2. goats 60 → ___________________________________________
3. horses 20 → ___________________________________________
4. rabbits 50 → ___________________________________________
与十进制数4625等值的十六进制数为()。
A.1211;
B.1121;
C.1122;
D.1221.