冷凝集素测定不增高的疾病为()
A.人支原体肺炎
B.传染性单核细胞增多症
C.多发性骨髓瘤
D.再生障碍性贫血
E.肝硬化
参考答案:D
选词填空。
1. Beijing is ______ (big/bigger) than Tianjin.
2. The Changjiang River is very ______ (long/longer).
3.1s Lingling ______ (shorterlshort) than Ms Smart?
4. I'm ______ (old/older) than my little sister.
5. Wang Ping is a ______ (tall/taller) boy.
光纤通信测量中使用的光源有:()。
A.太阳光
B.稳定光源
C.红外可见光源
D.白色光源(即宽谱线光源)