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【单选题】
细胞结构和功能的基本单位是:( )A.
细胞
B.
核糖体
C.
细胞器
D.
RNA
E.
DNA
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反馈参考答案：
举一反三
【简答题】从所给的选项中选出5个句子完成下列对话，其中多余2项。 A. Only a little. B. Thank you. C. My name is Li Xiaopeng. D. What about you? E. Where are you from? F. How far is your home from here? G. My parents work there. A: Are you...
【简答题】电路中某一点的电位，零电位点选择不同时其电位值（），所以各点电位高低是相对的。
【单选题】听力原文：M: Good morning, Doctor. F: Good morning, Mr. Smith. What can I do for you? M: I feel there's something wrong with me, but I'm not sure. F: Could you explain to me more? M: I usually get a runny ...
A.
One week.
B.
One month.
C.
Two months.
D.
Half a year.
【单选题】I am not sure exactly how much money you will receive, but it will______cover your major expense.
A.
firmly
B.
roughly
C.
constantly
D.
frequently
【简答题】补全对话 A. Take this medicine three times a day. B. Can I take your temperature? C. You only got a cold. D. Open your mouth and say 'Ahh'. E. I have a lot of headaches, and I feel tired. F. You should se...
【单选题】听力原文：Forming a good 'breakfast habit' for your baby is what a mother should do. This food is excellent for babies. It has iron added and more texture, which are needed in baby's diet. I am sure your b...
A.
medicine
B.
mobile phone
C.
skin care products
D.
bicycle
E.
car
F.
gloves
G.
baby cereals
H.
camera
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