以下各种物质中不属于效应T细胞分泌释放的是()
A:淋巴因子
B:球蛋白
C:白细胞介素
D:干扰素
根据问句选答句。
How old are you?____ A. I'm 10.
Happy birthday!____ B. Five.
How are you?____ C. Thank you.
How many boxes?____ D. I'm fine, thank you.
I have a ruler.____ E. Me, too.
电器工作时消耗的电功率与 ____ 、____ 有关。电功率的计算公式:P= ____ = ____ = ____ = ____