细胞因子通常以非特异方式发挥作用，即细胞因子对靶细胞作用_________，也_________。
参考答案：无抗原特异性；不受MHC限制
填入适当的词语补全句子。
1. -______________is your dress?
-Red.
2. -_____________is it?
-It's Liu Tao's.
3. -________________birds can you see?
-Five.
4.-__________is my jacket?
-It's on the bed.
5.-________is that woman?
- She's my mother.
6. -________you have a canteen?
-Yes.
7. -________are you?
-Fine, thank you.
8. - ________are these?
-They're socks.
《大清现行刑律》规定的刑罚体系是（）。
A.罚金、徒刑、流刑、遣刑、死刑
B.笞刑、杖刑、徒刑、流刑、死刑
C.没收、拘役、徒刑、流刑、死刑
D.罚金、拘役、有期徒刑、无期徒刑、死刑
