急性白血病浸润的体征最多见于（）
A.胸骨压痛
B.牙龈肿胀，皮肤损害
C.淋巴结、肝脾大
D.中枢神经系统
E.心脏增大
参考答案：C
看图，用适当的单词完成对话。
1. —Where _____ your father's badnunton(羽毛球)_____?
—They are _____ the desk.
2. —What are those?
—They are _____.
—Do you like _____?
—Yes, I often have them _____ dinner.
3. —What _____ this in English?
—It's a _____.
—How do you _____ it?
—P-H-O-N-E.
—What is your phone _____?
—It's 835 - 223986.
请简单描述黑条矮缩病与南方黑条矮缩病褐的区别及防治药剂？
