问题
单项选择题 A1型题
家蚕质型多角体病毒感染家蚕中肠的细胞为（）
A.圆筒形细胞
B.杯形细胞
C.再生细胞
D.颗粒细胞
E.脂肪细胞
答案
参考答案：A
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家蚕质型多角体病毒感染家蚕中肠的细胞为（）
A.圆筒形细胞
B.杯形细胞
C.再生细胞
D.颗粒细胞
E.脂肪细胞
参考答案：A
| 单词填空。 1. It's very kind of them _____ (pick) me up at the railway station and drive me home. 2. I feel it hard _____ (keep) up with my classmates. But whenever I want _____ (give) up, my teacher always encourages me _____ (work) harder. 3. While travelling to Canada, you should give yourself a day _____ (be) used to the time and know the way nearby. 4. The old man sat there, _____ (read) a newspaper. 5. All the homeless children _____ (look) after well. 6. Would you like _____ (talk) with your parents about your study? 7. You'd better try _____ (not play) computer games any more. 8. There are many girls _____ (dance) in the park happily. 9. I suggest _____ (spend) our summer vacation in a seaside town. |