病毒感染的非特异免疫主要是靠()
A.干扰素和NK细胞
B.干扰素和免疫球蛋白
C.NK细胞和免疫球蛋白
D.NK细胞和CTL
E.CTL和吞噬细胞
参考答案:A
汉字魔术变变变。(加同一个部首组成不同的字,再为它组个词语)
1.木 ____( )
马 + ( ) ____( )
日 ____( )
2.固 ____( )
青 + ( ) ____( )
昆 ____( )
根据句子意思和汉语提示写出单词的正确形式。
小题1:_______(二月)is the second month in a year.
小题2:Her _______(最喜欢的) subject is English.
小题3:________(欢迎) to 9 o’clock Weekend Talk.
小题4:What about________(健康) Living?
小题5:----How was the weather in Guangzhou?
-----It was windy and______(多雨的,有雨的)。
小题6:I don’t like the movie. It is very _______(令人厌烦的).
小题7:The students are _______(讨论) some quesitions with their English teacher.