参与免疫应答或与免疫应答有关的细胞及其前体,称为免疫细胞。下述不是免疫细胞的是()
A.血小板
B.红细胞
C.淋巴细胞
D.造血干细胞
E.巨核细胞
参考答案:E
情景交际我最棒,根据情景选择最佳答案。
1. A letter is __________ the table. [ ]
A. in
B. on
C. under
2. —Where is Xiaoyong?
—__________[ ]
A. He's on the box
B. He is on the bed.
3. —What is this?
— __________.[ ]
A. It's on the box.
B. It's a box.
4. He is swimming __________ the lake. [ ]
A. on
B. in
5. —__________?
—It's on the chair.[ ]
A. What is it
B. Where is the apple
C. How is the apple
6. She often __________ in the park. [ ]
A. flies kites
B. swims
C. walks
“南京大屠杀”是日本帝国主义最为典型的侵华罪恶之一。我们在研究“南京大屠杀”时,最有力的证据是( )
A.当年受害者的控诉材料
B.历史专著中对“南京大屠杀”的描述
C.侵华日军老兵的回忆录
D.屠杀现场遗迹与当时摄制的新闻照片