关于效应T细胞的作用最完整的一组是 ①分泌淋巴因子 ②呈递抗原 ③识别抗原 ④激
题型：选择题
问题：
关于效应T细胞的作用最完整的一组是
①分泌淋巴因子 ②呈递抗原 ③识别抗原 ④激活溶酶体酶 ⑤与靶细胞结合[ ]
A．①③④⑤
B．①②③⑤
C．②③④⑤
D．①②③④
题型：选择题
阅读短文判断对错，对的画(
)错的画(
)。
Today my family go shopping. We take a taxi to the shop. The shop is far and big. In the shop, the
women and men walk slowly. The children walk quickly. My mother buys a gift for me. My father buys a
camera. I have a sister and a brother. My brother is one year old. He learns to walk. It's hard for him to
walk. My mother helps him.
( ) l. They walk to the shop.
( ) 2. The people in the shop walk slowly.
( ) 3. My father buys film.
( ) 4. My brother is too young to walk.
( ) 5. There are five people in the family.