She has got some _____ in her hand. [ ]
A. photoes
B. potatoes
C. tomatos
D. radioes
答案:B
Read and choose. 选出与画线单词意思相近或相同的一项。
1. —How are you? —I'm OK.[ ]
A. nice
B. good
C. very well
2. Is your father in?[ ]
A. at home
B. at work
C. at school
3. He is Jack.[ ]
A. My name
B. His name
C. Her name
4. It's time for school.[ ]
A. go to school
B. to go to school
C. to the school
5. I'm having a pizza for lunch.[ ]
A. eating
B. buying
C. drawing
免疫原性是指抗原分子()
A.能与应答产物发生特异性反应的特性
B.不能与应答产物发生特异性反应的特性
C.能诱导免疫应答的特性
D.不能诱导免疫应答的特性
E.与载体结合后诱导免疫应答的特性